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Scientists Double Optical Fiber Transmission Capacity

timothy posted more than 12 years ago | from the Polarisationsmultiplex-DatenŁbertragungssystem dept.

Science 229

ms writes: "Yesterday golem.de reported that the Optical Communication and High-Frequency Engineering Group at the University of Paderborn (Germany) claims to have made a technology practical which doubles the transmission capacity of optical fibers to 80 GBit/s. In their so-called "polarization division multiplex data transmission system" they don't only send one but two mutually orthogonal light waves through the fiber. They say the only big problem was the dispersal of the light waves which limits the data rate. Additional they had to fight against the phenomena that the polarization direction of the light waves changes while it goes through the fiber. Now, after two years of research, they invented an "automatic optical compensator of polarization mode dispersion" which fights both the limitations. With this gadget they were able to send data at a rate of twice 40 GBit/s (that's 85,899,345,920 Bps) over a test-line of 212 km. And "only the available equipment limited distance and data rate". As we all know, optical fibers build the (cronically overloaded) backbone of our beloved Net. (BTW: That's Net., not .Net!)" Here's the babelfish translation, too.

cancel ×

229 comments

Must defend (-1)

Sunken Kursk (518450) | more than 12 years ago | (#2408102)

Against AC fools! Must resist evil at every turn.

Re:Must defend (-1, Flamebait)

Anonymous Coward | more than 12 years ago | (#2408111)

fuck you, the ACs outnumber you 5208070400340 to 1

Re:Must defend (-1)

Sunken Kursk (518450) | more than 12 years ago | (#2408141)

fuck you, the ACs outnumber you 5208070400340 to 1

And isn't it amazing that I can easily overpower any one of them simply because I have a dedicated troll login! In the end, which one of us took the lead, hmm?

Re:Must defend (0)

Anonymous Coward | more than 12 years ago | (#2408222)

which one of us took the lead, hmm?


Well, neither of us. We both got modded down to -1

Re:Must defend (-1)

Sunken Kursk (518450) | more than 12 years ago | (#2408266)

I earned my -1 a long time ago, thank you very much! You got yours as a gift from some lame-ass moderator with some extra mod-points to burn.

If you're going to run with the big dogs, take your licks like a man. Don't hide behind some cloak of anonymity like a little wussy bitch!

Re:Must defend (0)

Anonymous Coward | more than 12 years ago | (#2408316)

The reason I don't have a troll account like you is because I am too damn lazy to sign up for one.

Re:Must defend (0)

Anonymous Coward | more than 12 years ago | (#2408330)

you mom has a lovely cunt

Re:Must defend (-1)

Pinus Tarballs (453704) | more than 12 years ago | (#2408376)

the ACs outnumber you 5208070400340 to 1

Yes, but keep in mind that each and every one of those AC's is an eyeless shitsucking assworm.

Re:Must defend (-1)

Dead Fart Warrior (525970) | more than 12 years ago | (#2408113)

Argh... you are too fast for me... Need to get back to my basic trolling technique!

Outstanding! (-1)

TrollMan 5000 (454685) | more than 12 years ago | (#2408124)

Good FP, with a purpose.

AC fucksticks must die!

w00t! (-1)

cyborg_monkey (150790) | more than 12 years ago | (#2408139)

And that is a fine first post. Just fine.

Carry on, soldier.

\/\/()()T!

Re:w00t! (-1)

TrollMan 5000 (454685) | more than 12 years ago | (#2408152)

Unmuzzled!

w00t indeed!!!

Re:w00t! (-1)

Dead Fart Warrior (525970) | more than 12 years ago | (#2408163)

That was fast... thought you just got the ban today...

Re:Must defend (-1, Troll)

Anonymous Coward | more than 12 years ago | (#2408184)

what is the deal with 'troll tuesday?'

how can i get involved?

i am ready to recant of my AC ways and join the movement! i just need some explanation.

Re:Must defend (-1)

Strom Thurmond (R-SC (310866) | more than 12 years ago | (#2408202)

Get an account and find trolltalk.

Re:Must defend (-1, Troll)

Anonymous Coward | more than 12 years ago | (#2408207)

arent you the oldest fart on /.?

and what is this troll talk?

Re:Must defend (-1)

Strom Thurmond (R-SC (310866) | more than 12 years ago | (#2408270)

My sig wasn't showing up there for a minute... Odd. You can visit the hidden trolltalk SID here on slashdot, though I don't have the right URL right now, sorry.
Myself, I'm more of an offtopic crapflooder than a pure blooded troll.

Re:Must defend (-1)

Sunken Kursk (518450) | more than 12 years ago | (#2408355)

During my research, this is what I found...

Troll Talk [slashdot.org]

It doesn't seem to allow posts. I may not have gotten the link correct.

Re: Troll Tuesday (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#2408217)

Well, troll tuesday is just a little something us trolls came up with to try and make a difference. There are a lot of different benefits going on right now, we just wanted to contribute in our country's time of need. Also, on troll Tuesday, we all get together for a cornhole fest. Sure, you'll see Fecal Troll Matter ramming his spike into Dead Fart Warror's cavernous asshole, and you might see sporks tugging on one another's braided asshole beards. It truly is a special time.

AC poodle

Re:Must defend (-1)

Sunken Kursk (518450) | more than 12 years ago | (#2408259)

From my understanding, every day is a trolling day. However, every Tuesday is set aside as "Troll Tuesday." These days are used to bring trolling and crapflooding to a fevered pitch, spotlighting the Troll's unique contribution to the Slashdot community.

To contribute, one need not be a logged in user. However, to be one of the proud, you need an account dedicated to the pursuit of quality trolling. While it is best to use a generally derogatory login, any login will do. For example, neither Cyborg Monkey nor Sunken Kursk are obvious troll accounts, but are still perfectly acceptable to use. On the other end of the spectrum, TrollMan 5000 and Dead Penis Bird leave little question of the intent behind their accounts.

So, to review. "Troll Tuesday" was set up for trolls to exert themselves, and the way to (proudly) participate is to set up an account and start trolling.

I expect to see your login soon. Nice to have you aboard!

Oh, and all ACs can suck my right nut now. My left nut has been taken care of nicely.

How lame... (0)

Anonymous Coward | more than 12 years ago | (#2408402)

They tried to block me because my IP had been moderated down too much in the last 72 hours. Don't they know about dial-up?

I am the Goatse, the Goatse.cx. (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#2408106)

I am your God. Bow before my giant poophole.

cherish my balls! (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#2408112)

so you want to be a rock star? well listen to what I say.

just spend some time on an electric guitar and learn how to play.

fp

Re:cherish my balls! (-1, Redundant)

Anonymous Coward | more than 12 years ago | (#2408134)

so you want to be a rock star? well listen to what I say. just spend some time on an electric guitar and learn how to play.

Just learn how to play...

I was down at the New Amsterdam. Staring at this yellow haired girl.

Hookup? (1)

itsnotme (20905) | more than 12 years ago | (#2408116)

Any chance I can get a hookup into this? :-) I wouldnt mind downloading directly off that fiber line..

Moderation: Humor=+1 Underrated=+1 Insightful=+1

PROPZ TO MY NIGGAZ IN SOUTH CENTRAL (-1, Flamebait)

Anonymous Coward | more than 12 years ago | (#2408118)

werd to my homeyz down on Crenshaw and Jefferson werd niggaz mad propz to my niggaz T, jay dope, muff, and dat NIGGA DAZ

FREE MUMIA!

Mind Blown (3, Interesting)

Zen Mastuh (456254) | more than 12 years ago | (#2408119)

Just trying to grok "mutually orthogonal". Is that redundant, or just over my head? Not trying to nitpick, but to understand something my networking prof never explained.

Re:Mind Blown (1)

nanojath (265940) | more than 12 years ago | (#2408210)

I'm not certain but I think it's just muddy syntax - I assume they just mean perpendicular. Orthoganl in this context I would assume means at right angles, and implies the mutually part - so yeah, sort of redundant or just badly stated.

Re:Mind Blown (-1)

Strom Thurmond (R-SC (310866) | more than 12 years ago | (#2408213)

It's just over your head, cock breath.

Definition of mutually orthogonal (3, Informative)

Ghoser777 (113623) | more than 12 years ago | (#2408226)

In geometry, orthogonal just means perpendicular. But, according to searchStorage: "In computer terminology, something - such as a programming language or a data object - is orthogonal if it can be used without consideration as to how its use will affect something else. " So, the light waves are mutually orthogonal (they are data objects in this case), but I'm not exactly sure how to apply the definition to exactly what the scientists are doing with fiber optic cables.

F-bacher

Re:Mind Blown (1)

MrResistor (120588) | more than 12 years ago | (#2408245)

Orthogonal is a math term, not a networking term.

In 2 dimensional space it's the same as perpendicular, but in 3 dimensions "perpendicular" is technically insufficient to describe the relationship. As you add dimensions orthogonality gets progressively more complicated, hence the addition of "mutually". It could be redundant depending on the situation, but better safe than sorry...

mutually orthogonal (5, Informative)

MarkusQ (450076) | more than 12 years ago | (#2408257)

Just trying to grok "mutually orthogonal". Is that redundant, or just over my head? Not trying to nitpick, but to understand something my networking prof never explained.

"mutually orthogonal" means (for a set of two or more elements) that each pair of elements is orthogonal--AFAIK, it's a synonym for "pairwise orthogonal". "orthogonal," of course, has lots of synonyms, including "linear independence," "at right angles," "having zero dot-product," "statistically uncorrelated," etc.

So, the three spacial dimensions, the set {phase of the moon, day of the week, time of day}, etc. are all "mutually orthogonal." When talking about a set of only two elements, the "mutually" is superfluous, but not redundant.

-- MarkusQ

Re:mutually orthogonal (0)

Anonymous Coward | more than 12 years ago | (#2408277)

Got it!

--the Mastuh

Re:Mind Blown (2)

wurp (51446) | more than 12 years ago | (#2408268)

Orthogonal can either mean that the two don't affect each other, or that they are at right angles to each other. In this case, it means both - the angle of polarization of one beam of light is orthogonal to the angle of polarization of the other, and thus a polarization filter parallel to one beam of light passes it through unhindered and completely blocks the other beam. In this way you can process the two beams separately even though they are running down the same fiber.

But, yeah, mutually orthogonal is redundant. You have to have something to be orthogonal to, and if you're orthogonal to it, it must be orthogonal to you.

Mutually Orthogonal (1)

zentigger (203922) | more than 12 years ago | (#2408275)

"Mutually orthogonal" refers to the fact that the optical carriers are travelling perpendicular to each other, but are travelling through the same space (transmitted concurrently), as opposed to being transmitted using a tdma-type technology where the signal would be pulsed on one axis and then other consecutively. This is very much like the technology used in satellite communications, where each transponder has A and B poles.

it is an ill wind (0)

Anonymous Coward | more than 12 years ago | (#2408298)

that blows no minds

Cool (1)

Quasar1999 (520073) | more than 12 years ago | (#2408122)

Sweet... Can we use this new technology to ease the congestion over the trans-atlantic/pacific backbones???

Re:Cool (1)

NevDull (170554) | more than 12 years ago | (#2408231)

Sorry, but any excess capacity will immediately be filled by script-kiddie ping floods.

Anyone ever done a study on what percentage of traffic passing over backbones is ICMP-echo and reply?

-NevDull

This would be great... (-1, Troll)

Patrick Bateman (175284) | more than 12 years ago | (#2408125)

... for the message-passing backbone of a Beowulf cluster.

Babelfish translation... (0)

Anonymous Coward | more than 12 years ago | (#2408127)

BabelFish Error 3012
We're sorry we've encountered an error with your request.
If you think this is a bug we should know about? Send us e-mail and let us know the following:

* What browser you were using.
* The operating system you are on.
* The type of translation you were trying when this error occurred.

Questions? Check out our FAQs.

The error encountered is:

Not a valid referer.


I didn't think I was an invalid reefer.

Really? (-1)

Dead Fart Warrior (525970) | more than 12 years ago | (#2408129)

They say the only big problem was the dispersal of the light waves which limits the data rate.

I have the same problem in my pants right now. A little preparationH fixes it everytime!

Now... back to watching Moesha...

Dark fiber (4, Interesting)

Foxxz (106642) | more than 12 years ago | (#2408130)

This is going to help the industry alot. Right now there is pleanty of unused fiber, but the problem is the devices that use the fiber take too much room. if we build them smaller and faster we can increase capacity easily.



-Foxxz

Re:Dark fiber (5, Insightful)

sllort (442574) | more than 12 years ago | (#2408247)

This is going to help the industry alot. Right now there is pleanty of unused fiber, but the problem is the devices that use the fiber take too much room. if we build them smaller and faster we can increase capacity easily.

The other thing that would help the industry would be to stop going bankrupt. Most to all of the CLECs (PS/Inet anyone?) are bankrupt and insolvent, and the major carriers - WorldCom, Verizon, Global Crossing - have horrible credit ratings and a total freeze on capital equipment purchasing. Right now no one is buying next generation optical equipment. Look at Nortel stock... if you bought $1000 of Nortel stock last year, you'd have $43 today. I won't even mention Lucent. Those are the big boys - the small ones (cough Iron Bridge cough) are all dead or dying.

Optical equipment vendors have no customers. Optical equipment manufacturers are slashing R&D and personnel, and relying on existing revenue streams for survival.
Optical network carriers are nearly bankrupt.

...and NO ONE is paying for premium bandwidth.

So pretty much, this isn't gonna help anybody. The next advance in optical networking isn't going to be the next next-generation fiberoptic breakthrough. It's going to be a solvent carrier, or a paying customer for broadband.

Re:Dark fiber (1, Funny)

Anonymous Coward | more than 12 years ago | (#2408299)

If you bought 1000 beers and returned the cans for $.05 each you would have $50.00

Therfore save money, drink more.

Re:Dark fiber (2, Redundant)

taliver (174409) | more than 12 years ago | (#2408385)

Look at Nortel stock... if you bought $1000 of Nortel stock last year, you'd have $43 today.


And If you'd had bought $1000 worth of beer last year, you'd have $75 due to the nickle from the deposit, and you'd have had 250 six packs... A much better ROI.

Interesting (1)

Methuseus (468642) | more than 12 years ago | (#2408132)

Now we have the next question that comes to mind. I want to know if there's a software solution to all of this, or if the hardware itself has to be upgraded to take advantage of these speeds.

Also, I know it can be done over existing lines, which is great for the installed base, but it still doesn't help run them all over. I'm just lamenting the fact that they don't have, and probably won't have in my lifetime, fiber as widespread as telephone line. Sorry for the OT part.

Re:Interesting (1)

silicon_synapse (145470) | more than 12 years ago | (#2408223)

Now we have the next question that comes to mind. I want to know if there's a software solution to all of this, or if the hardware itself has to be upgraded to take advantage of these speeds.

I would guess the hardware would need to be upgraded since two light streams are being transmitted through the fiber. Unless of course you could rig up a fork/splice (probably involving duct tape of course) with a transmitter on each fork, but I doubt it. I'm going to go out on a limb here and guess that this new technology won't be economically feasible for most people for a while. I'd love to be proven wrong though.

Re:Interesting (1)

wunne (464788) | more than 12 years ago | (#2408294)

I guess in my country (DE) especially in Eastern Germany, fiber is more spread than copper. Due to this, this sounds to me like a fabulous solution to get more bandwidth. Anyway since Im a student at the University of Paderborn I must say that great stuff is happening here... ;)

*** Hm... this just tastes like inky nails...

Great, now bring it to my casa... (1)

microbob (29155) | more than 12 years ago | (#2408142)

Great, now bring it to my casa...or maybe light all the fiber that is already in the ground.

Re:Great, now bring it to my casa... (1)

ackthpt (218170) | more than 12 years ago | (#2408251)

Su casa, is right. You're more likely to plop this between your router under the stairs to your workstation in the den sooner than you'll realize any benefit beyond your door. But, hey, there's always hope you'll see it before arthritis and failing eyesight set in.


Time for my own fibre supplement...

Handy guide to acronyms (-1, Flamebait)

Shoeboy (16224) | more than 12 years ago | (#2408146)

EMACS: Effeminate Males Advocating Coercive Sodomy
FSF: Fiendish Society of Faggots
GNU: Gayness is Not Unusual
GNOME: Gay Nonce Of Mexican Extraction (Miguel de Icaza)
RMS: Rectums Made Sore

Hopefully this will improve your understanding of the Free Software movement.
--Shoeboy

Re:Handy guide to acronyms (-1)

Strom Thurmond (R-SC (310866) | more than 12 years ago | (#2408291)

WTF? Seems out of context, though I appreciate the tutorial!

Remember (1, Insightful)

Haxx (314221) | more than 12 years ago | (#2408149)


that's 85,899,345,920 Bps

Up from 300 Bps 14 years ago. Not too shabby.

Re:Remember (1, Informative)

Anonymous Coward | more than 12 years ago | (#2408312)

Wrong. 300bps was the speed of your f'ing modem, not the state of the art high bandwidth technology of the day.


A more appropriate comparison is to 56kbps modems we have today. 300 to 56000 in 14 years. That roughly a doubling of speed every 2 years. Slower than computer CPU development, but then we are limited by the telco equipment, aren't we.

So how long until we can have fiber disks? (1)

taliver (174409) | more than 12 years ago | (#2408154)

300km worth of cable = 10MBytes of storage with access times of 1 msec... So I guess we have to wait until we can pump bandwidth up 4 orders of magnitude to have a neat little system... (with 300km worth of cable in a drum...)

so whats the deal with tuesday? (-1, Troll)

Anonymous Coward | more than 12 years ago | (#2408157)

what is the deal with 'troll tuesday?'

how can i get involved?

i am ready to recant of my AC ways and join the movement! i just need some explanation.

I love bablefish! (5, Funny)

nizo (81281) | more than 12 years ago | (#2408161)

From the babelfish translation:


Additionally it possesses a controlling mean, which is to after-pursue even largest polarization modifications, as they occur on very long transmission circuits contrary to competitive systems also, noly-break.

Once I figure out what a noly-break is, I should be able to build my very own high speed home network!

The "backbone" of the whole internet (1)

mfdii (228630) | more than 12 years ago | (#2408167)

The "backbone" of the whole internet and telephone net consists of optical fibers. For transmission capacity doubling each optical wavelength may carry two signals with mutually orthogonal vibration directions. The results of this technology could be outstanding.

Now when can I get this to the curb?

Fruit 'n Fiber (4, Funny)

Renraku (518261) | more than 12 years ago | (#2408168)

Maybe some day cutting a fiber line would yield deadly results. Imagine accidently digging through a fiber line only to be cut in half by the power of the beam. That would rule! As if being electrocuted to death wasn't enough, soon we can be killed by data...I can see where the 'freak accident causes supergenius to be born' movies are going to come from..

Re:Fruit 'n Fiber (1)

ethereal (13958) | more than 12 years ago | (#2408295)

Hmmm, if the countryside was littered with laser-blinded backhoe operators as a result of their slicing through the wrong cable, I don't know how that would be much worse than the current situation. You know what they will say: there are old backhoe operators, and bold backhoe operators, but there are no old, bold backhoe operators :)

80 Gbit/s... (1)

albat0r (526414) | more than 12 years ago | (#2408173)

to be able to throughput at that speed, I can't imagine the hardware that is needed...

I mean, I hope that nobody had the idea that he will be able to have it directly into his Athlon 1.4 Ghz... Poor fool...!

You need IBM! (0)

Anonymous Coward | more than 12 years ago | (#2408340)

80gbps can be handled by "Fiber Saver" [ibm.com] , based on the zSeries mainframe system.


IBM, Solutions for a Small Planet.

Langauge (1)

LagDemon (521810) | more than 12 years ago | (#2408174)

Does anyone have a link to a good translation of the article [golem.de] ? The translation at altavista is incomprehensible!

Thanks!

Re:Langauge (1, Funny)

Anonymous Coward | more than 12 years ago | (#2408303)

With what do you deal with yourselves? I have always babelfishuebersetzungen found, in order to be completely readable and understandable!

Who the fuck cares? (-1, Flamebait)

Anonymous Coward | more than 12 years ago | (#2408178)

Impossibly obscure scientific discovery announced!!!! WOO HOO

Nigger troll

Does orthagonality ... (1)

sporty (27564) | more than 12 years ago | (#2408189)

Does orthagonality relate to the wavelength or the relative angles the light is sent? If the latter, any reason they couldnt' use colour as a second channel? (particular wavelengths)

Re:Does orthagonality ... (0)

Anonymous Coward | more than 12 years ago | (#2408278)

It's the polarization of the light.

It's how 3D IMAX movies work.

Re:Does orthagonality ... (4, Informative)

astroboy (1125) | more than 12 years ago | (#2408324)

The `orthogonality' here refers to polarization. For a little intro, see a page like this one at Case Western [cwru.edu] . Light's an electromagnetic wave, consisting of an electrical and a magnetic field at right angles to each other.

The beams in this article are orthogonal in the sense that channel #1 has it's E-field pointed prependicular to channel #2's E-field so they won't interfere with each other (so they're `orthogonal' in the usual compu-geek sense of the term, too.)

The german team seems to have solved two big engineering problems with sending two channels of information this way. One is to send a mean-polarized signal so that you can compare the two channels against it (kind of a carrier signal for polarization) to see which channel is which.

The other I confess to not understanding. Apparently there are sync problems -- signals carried one polarization may travel faster than the other polarization. I can only guess that this is a problem caused by inhomogenaities in fibre. Whatever its caused by, they've managed to measure it and compensate for it.

As for your other question, they definately can and do use frequency as a way of encoding information. Just like with radio signals, you can use the brightness of the light (amplitude modulation, or AM) or its color (frequency modulation, FM). In practice, FM is less problematic; the amplitude of a signal is easily confused by noise, whereas frequency is much less so.

Gee, that's swell (2)

ackthpt (218170) | more than 12 years ago | (#2408192)

Now I can get spammed in half the time.


It's ironic that this article comes on the heels of some articles I just saw (in metamoderation) about how oversold services (DSL/Cablemodem) are. This would be a great thing, if any company still has the capital to lay new fiber, though I expect many are just trying to eke out a returns on what they already have. My ISP, Concentric/XO was last listed at $0.40 a share, and they're advertising cheep long distance, etc. right now.

Increasing capacity; increasing vulnerablility (5, Insightful)

case_igl (103589) | more than 12 years ago | (#2408194)

It seems every year we find a way to double the amount of data that we can send down fiber. As a result of this, companies are actually deploying less new fiber in the field and taking older lines out of commission.

One of the things that worries me about this is the increased vulnerability. In the past, huge fiber networks were used that can be one tenth the size today. All too often a clueless construction worker rips up a section of fiber and causes some havok.

Won't this kind of thing happen more frequently if less fiber is deployed that can handle more traffic? And does this bring us any closer to fiber to the curb - it doesn't seem like it.

Re:Increasing capacity; increasing vulnerablility (5, Interesting)

sllort (442574) | more than 12 years ago | (#2408286)

All too often a clueless construction worker rips up a section of fiber and causes some havok.

The industry euphimism for this phenomenon is a "backhoe failure". Metro fiberoptics are all deployed in a "ring" configuration - if a ring is cut, the traffic is sent the other direction on the ring withing 50 milliseconds. The operative protocol here is called SONET [atd.net] . SONET rings have been around for a long time, and they pretty much solve the issue of backhoe failures. Some vendors are pushing proprietary mesh-based architectures which offer even more redundancy.

The issue you bring up, however, does exist on one-way long-haul fiberoptic lines. Major carriers spend millions on 24 hour overflights by patrol helicopters to monitor these fibers for cuts - and some of the largest players in the telco field are oil suppliers because they already patrol their oil pipelines for just this kind of event; burying fiber next to the pipeline is cheap by comparison.

The massive transmission capabilities introduced by advances in fiberoptics DO give us more ability to heal networks, because they give us additional load-bearing capability during failure. The missing piece is actually building equipment which will heal the network effectively, in time. If you're truly interested in ongoing research in this area, open up google and ask it about "GMPLS".

Enjoy.

Nitpicks (2, Informative)

Anonymous Coward | more than 12 years ago | (#2408203)

First, twice 40Gbps is not 85,899,345,920 bps, it is actually 80,000,000,000 +/- 1,000,000,000. We don't measure Gbps in powers of 2. Secondly, the internet backbone is not overloaded, but is running at about 20% capacity according to the people who operate it.

Re:Nitpicks (1)

ackthpt (218170) | more than 12 years ago | (#2408235)

the internet backbone is not overloaded, but is running at about 20% capacity according to the people who operate it.

And on the declining revenues they're getting by on, my hat's off to those folks! [dragonswest.com]

Patents, anyone? (1, Interesting)

Anonymous Coward | more than 12 years ago | (#2408204)

Thoughtfull /.'ers can ignore this.

Knee-jerk /.'ers, ask yourself: Once you've realized what a cool thing this is, and understand that hard work went into making it happen, are you then going to demand they make it "Open" and "Free" and not patent it, because Patents Are Bad and Sharing Intellectual Property is the Right of All Mankind? Or will you realize that they have a right to benefit from their hard work and wish them luck?

Great job, and I wish them great success, for the selfish reason that I wish to benefit from this technology and think it could actually reduce infrastructure costs, thus (somewhat slightly) reducing my costs (or at least delaying the next inevitable increase).

Knee jerk? I've got something for you to jerk! (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#2408232)

MUAHAHAHAHAH! EVIL reigns supreme throughout the land and the resivoirs are filled with broken glass and everyone sports gills on their ass and there like school on a saturday you have no class and Christina Aguilera put me on blast.

Re:Patents, anyone? (1)

eyeball (17206) | more than 12 years ago | (#2408249)


Knee-jerk /.'ers, ask yourself: Once you've realized what a cool thing this is, and understand that hard work went into making it happen, are you then going to demand they make it "Open" and "Free" and not patent it, because Patents Are Bad and Sharing Intellectual Property is the Right of All Mankind? Or will you realize that they have a right to benefit from their hard work and wish them luck?

Good post. I agree with you, and naturally disagree with the "we must share all advances for the good of the people" attitude. Communism isn't counter-culture, anti-establishment, nor is it cool. It just plain sucks.

I'll Take the Bait (2)

Zen Mastuh (456254) | more than 12 years ago | (#2408262)

Imagine if HTML was patented way back in the 1.0 days. By now the owners of the patent would have:

  • Charged so much (in the name of the Profit) as to run off all potential users
  • Enlisted Congress to enact draconian penalties to prevent people from "stealing" the precious bodily^H^H^H^H^H^H intellectual property
  • Bankrupted the company through poor business practices, letting the fruits of the engineers' labor rot away in some attorney's vault

Instead they gave freely and changed the world. ;)

Bringing new meaning to the term Collision? (0, Redundant)

MrResistor (120588) | more than 12 years ago | (#2408205)

I don't know how much of a problem particle collisions are for photons, and it's probably a rare occurence, but it seems like the probablility would increase with the frequency...

IANAPE (I am not a photonics expert), but that was the first thing that popped into my head.

Slashdot posters have a short memory (2, Informative)

Rosco P. Coltrane (209368) | more than 12 years ago | (#2408221)

"As we all know, optical fibers build the (cronically overloaded) backbone of our beloved Net.

Hmm, and same Timothy posted this article [slashdot.org] on June 25th about a lot of fiberoptic cables that have been put into the ground but haven't been put to work.
You gotta love the consistency of Slashdot posts :)

Re:Slashdot posters have a short memory (0)

Anonymous Coward | more than 12 years ago | (#2408321)

It takes more than just fancy wires to be the 'backbone' of the Internet. He was referring to the ability to increase the bandwidth of that small amount of fiber that is in heavy use, even though there's plenty more to go around that may not be getting much use at all. I'm sure fiber cables in NY get worked out a lot more than some fiber optic cable in po-dunk North Dakota.

Re:Slashdot posters have a short memory (5, Informative)

sllort (442574) | more than 12 years ago | (#2408350)

Hmm, and same Timothy posted this article [slashdot.org] on June 25th about a lot of fiberoptic cables that have been put into the ground but haven't been put to work.
You gotta love the consistency of Slashdot posts :)


Dark fiber is fiber with no optical equipment connected to it. Fiber is not the expensive part of optical networking. Air-conditioned environment-controlled closet space filled with millions of dollars of self-healing optical equipment is the expensive part. A lot of metro optical carriers use the benchmark of $100,000 per month per 7 foot rack in operating costs. The denser the equipment, the cheaper the equipment, the more of that dark fiber the carriers can light to form the backbone of the Internet.

So, in short, Slashdot was right and you were totally wrong. Or Insightful. Your choice.

Huh? (0)

Anonymous Coward | more than 12 years ago | (#2408255)

They whoed the what how many times?

Suck my mammoth cock, anyone? (-1, Flamebait)

Anonymous Coward | more than 12 years ago | (#2408256)

You see, when shit like this gets posted, we must punish slashdot for being boring. We are voting with our assholes here baby voting with our uuungh assholes oh yeah thats it uuuung

QT in the Morning, QT in the Evening... (-1)

TRoLLaXoR (181585) | more than 12 years ago | (#2408271)

One of my favorite things to do before work is to stop in and grab breakfast at the good ol' QuickTrip on 119th. They have a wide variety of home-cooked-like foods and beverages, and a friendly smile to get you going in the morning.

My favorite QT breakfast has to be the Double Bacon Cheeseburger. Now I know, it's not really a breakfast food, but damn if I don't wolf it down like it was Gramma's grits! Just take it out of its wrapper, hit the "6" button, and 45 seconds hey-presto and you've got yourself a man's man's breakfast.

Now one side-effect (if you can call it that) is that QT food usually makes me fart, and fart a lot. Luckily I'm in a cubicle, but that's not always a guarantee of anal secrecy. The other day a coworker had to go outside, feeling naseous: she insisted something that smelled like a McDonald's breakfast was making her sick, but she didn't know where it was coming from!

I wanted to tell her, "that's QT, baby, not Mickey D's," but I thought better of it and went on with my work, thinking about the sandwich I had eaten earlier. Later, I thought, I'd have another for dinner, with a 64oz. Diet Dr. Pepper refill to ash it all down...

God bless QT!

Anime (0)

Anonymous Coward | more than 12 years ago | (#2408280)

Pendant show the Mystery Disk We'll take it to the Shrine Will it be that fabled Mystery Disk And release the Phoenix inside?

I was transported to a faraway land To a world where monsters rule I played the game like an ace Now we're in this place To save the monsters from the evil Moo

Monsters Rule!

Monster Rancher!

Monsters Rule!

Full on (-1, Troll)

Anonymous Coward | more than 12 years ago | (#2408306)

Full power for trolls yeah! It is the end, of EVERY forum. Not the one! No no not the one! It is around troll. Troll and troll make troll.

QT for Breakfast! (-1)

TRoLLaXoR (181585) | more than 12 years ago | (#2408320)

One of my favorite things to do before work is to stop in and grab breakfast at the good ol' QuickTrip on 119th Street. They have a wide variety of home-cooked-like foods and beverages, and a friendly smile to get you going in the morning in addition to the fine diesel and gasoline offered outside of their store.

My favorite QT breakfast has to be the Bacon Double Cheeseburger . Now I know, it's not really a breakfast food, but damn if I don't wolf it down like it was Gramma's grits! Just take it out of its wrapper, toss it in the microwave, hit the "6" button, and hey-presto! 45 seconds later you've got yourself a man's man's breakfast.

Now one side-effect (if you can call it that, I kind of enjoy it) is that QT food usually makes me fart , and fart a lot . Luckily I'm in a cubicle, but that's not always a guarantee of anal secrecy. The other day a coworker had to go outside, feeling naseous: she insisted something that smelled like a McDonald's breakfast was making her sick, but she didn't know where it was coming from!

I wanted to tell her, "that's QT , baby, not Mickey D's," but I thought better of it and went on with my work, thinking about the sandwich I had eaten earlier. Later, I thought, I'd have another for dinner, with a 64oz. Diet Dr. Pepper refill to wash it all down...

God bless QT!

Re:QT for Breakfast! (-1)

trollercoaster (250101) | more than 12 years ago | (#2408395)


Amen brother.

Does QT still sell those triple chili dog joints? Now THAT'S good eatin'.

I haven't been to a QT in years; you're making me homesick. (They don't still sell the QT "Quitin Time" beer do they?)

Your pal, TC

Slupid Slashdot (0)

Anonymous Coward | more than 12 years ago | (#2408326)

Why does IE do this now? When I hit back after a failed post due to some stupid crap my post is deleted. Why the fuck does it do that? I am using the same version of IE for months. V5.5 what the fuck.

Modal or spectral? (1)

Magus311X (5823) | more than 12 years ago | (#2408336)

dispersal of the light waves

Modal or spectral dispersion? I'm assuming they're using singlemode fiber, so it's likely spectral dispersion, for those who wonder (and lazy to read the article).

Call to troll (0)

Anonymous Coward | more than 12 years ago | (#2408337)

Do you here that sound? It is the call of the troll saying that Slashdot must be shown the true meaning of troll power now! Come on trolls we can get the troll ratio up really high on this one. We are close to 3 to 1 on this one now. Lets get going. Show those karma whores that we have the numbers to stop there crap about linux and source and geek shit.

SO YOU WANT TO BE A TROLL (0)

Anonymous Coward | more than 12 years ago | (#2408343)

SO YOU WANT TO BE A TROLL


So you want to be a troll? Congratulations on choosing one of the most exciting and fulfilling pastimes known to man. Here are a few tips on what and how to post to help you get started.


1. Be concise. Ramble on too long and you'll lose 'em. An exception to this rule a long, detailed descriptoon of gay sex or some disgusting activity like cutting off your own penis.


2. Be repetitive. The more times people have to see your "suck onto my penis" ASCII, the more annoyed they'll become.


3. Gay porn is good, gay shiteating porn is better. Posting straight heterosexual porn should be avoided since most /. readers have tons of the stuff on their hard drives, and odds are, whatever you post, everyone's seen it already.


4. Cutting and pasting the CmdrTaco, Hemos, JonKatz, Michael's and Timothy's names into your gay porn story is a time-honored troll practise. As a rule, CmdrTaco's should be used as a "bottom", Hemos and JinKatz are usually used as a "top", Michael and Timothy switch off. Cutting and pasting CowboyNeal's name into gay porn is considered bad form and should be avoided.


5. Racist comments are very effective troll material. It is good practice to have your racist comment pretain to the parent story, for example: "AOL is for niggers!"


6. A less used but very effective troll is the smug, self-referential, cryptic comment. One of my favorite instances of this is the "Katy, I love you!" troll. People fucking hate that guy.


7. Another good troll is the anti-linux comment. If you are going to try this, it is best to make your comment as detailed and realistic as possible. No one's going to bite if you just post "linux bites ass".


8. Sorry to say, but goatse is tired. Goatse is over. Goatse is so 2000. Time to move on. Deal with it.


9. Dont try to be too clever and for god's sake don't be arty. No one wants to read your intricately rhymed sonnet about Natalie Portman's asshole. No one.


10. Dont get all offended and hissy when you get flamed. It comes with the territory. Just ignore them or reply with a simple "YHBT. YHL. HAND. Hahahaha". Remember, you are not doing this to make friends. You are doing this to shock, offend, disgust, and annoy.


Well, that's it, happy trolling. If you have any questions or comments, feel free to EAT MY ASS YOU FUCKING LOSER. I can't believe you read this fucking message all the way to the end! What the fuck is wrong with you? Why don't you go back to downloading jpeg of the time Anna K.'s with her tit fell out of her topblSJeh398 HehsnPOwjJaaj dueu(203&*# 394juJDEj3w *HITLER*ueue29shHHd3j3jhnASDFASDFASFASDF

Must... Increase... (-1)

Strom Thurmond (R-SC (310866) | more than 12 years ago | (#2408344)

Noise to Signal ratio...

I have (0)

Anonymous Coward | more than 12 years ago | (#2408352)

mere moments to post my final troll from this IP for the next 72 hours. Oh! I have at least 3 or 4 posts out there that are all about to collapse to -1 so this is it. Actually this isn't it. Hey taco ever heard of dynamic IP's What are you gonna do ban an entire class B network. Yeah send around 65K ips to there doom. Do it!

Hey its IP banning time (0)

Anonymous Coward | more than 12 years ago | (#2408364)

Hey where are the mods. Hey yeah you mods. I said you fucking loser mods. Get your ass out here and start moding this shit down. Come on you know that is what you live for. Smacking around trolls really makes you lamerz day. Well I am here to oblige. Gte you asses together and start moding shit down like a motherfuck

100 percent Pure troll (0)

Anonymous Coward | more than 12 years ago | (#2408378)

Certified Troll technology uses TrollVM to troll like you have never seen before. Now Troll goes anywhere with the power of troll once mod everywhere capability.

DWDM? (1)

skroz (7870) | more than 12 years ago | (#2408383)

How does their technique differ from dense wave divisional multiplexing? Anyone know?

SI prefixes != ^2 (1)

yggdrazil (261592) | more than 12 years ago | (#2408390)

80 Gbit/s != 85 899 345 920 bps

The prefixes kilo, mega, giga are SI prefixes and are always powers of 10, and should never, I repeat never, be used when talking about powers of 2. Use the terms "large gigabits/gigabytes" or "kibis, mebis and gibis" instead, to avoid confusion.

In telecommiunication measurements like bps, the SI prefixes have traditionally always been used properly.

80Gbps already implemented (1)

guerrouj (459370) | more than 12 years ago | (#2408398)

I work for williamscommunications.com and we already use DWDM (Dense Wave Division Mulitiplexing), which allows multiple freqs of light down the same strand. OC-192 transport systems with DWDM, operate in duplex on a single fiber, delivering up to 80 Gbps in eight waves in each direction.

Work w/ this everyday, why is this news???

Still (0)

Anonymous Coward | more than 12 years ago | (#2408404)

The mods still are as lame as shit. Come on you sit around on your ass and you can't even keep up with a few trolls on the top story on Slashdot. Yeah top story, must be a slow news day. Where is the we bombed the shit out of Kabul report or the government passes anti-slashdot poster laws. Yeah thats the main shit you find here as major stories. Oh and linux kicks everyones ass of course even though it actually gets kicked by everyone else. Haha your lame crap doesn't pass for news. Now mod this shit down!
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