 raythompsontn
join:2001-01-11 Oliver Springs, TN | Brilliant Picture Yeh, lets shine a bright laser light into the face. Safety glasses or not, that is never a good idea. | |
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 |   hopeflicker Capitalism breeds greed Premium join:2003-04-03 Long Beach, CA | Re: Brilliant Picture ohh, it's probably just photoshopped or some type of harmless laser. -- People pray to God because they're told to. | |
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 |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN | Re: Brilliant Picture I highly suspect that it is Photoshopped as the exit light would not diverge that much. Still it does give the impression that the light is indeed shining directly into the eyes. | |
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 |  |  |   telcolackey The Truth? You can't handle the truth
join:2007-04-06 Death Valley, CA | When do you read warning labels?
"DON'T LOOK AT LASER WITH REMAINING EYE" | |
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 |  ITALIAN926
join:2003-08-16 Stratford, CT | That was such a dumb comment man, its just a green light. When you walk by those fiber Christmas trees , do you hide your eyes ?
LOL | |
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 |  |  |
 |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by ITALIAN926 :That was such a dumb comment man, its just a green light. When you walk by those fiber Christmas trees , do you hide your eyes ? Do you know that for sure? Have you read about the dangers of green lasers? Infared from those lasers? Fiber does not use "green light". They use lasers, a coherent light source, a highly concentrated light source.
Tell you what. Take a green laser and shine it in your eye. You can still see the keyboard with your one good eye. | |
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 |  |  |   ATTek Got Sand?
join:2000-12-13 Pinon Hills, CA
| Re: Brilliant Picture said by raythompsontn : Fiber does not use "green light". Incorrect. Any light will travel through a fiber for a short distance. It needn't be a laser. If the pic isn't doctored in some way, then it's likely just a green light to make a nice publicity picture. The Christmas tree question was a valid one......do you really think all of the decorations around that use fiber optic lighting are harmful to your eyes? -- What does THIS button do..... | |
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 |  |  |  |   MattE Obama '08 Premium join:2003-07-20 Jamestown, NC
·North State Commun..
·Corporate Colocation
| Re: Brilliant Picture said by ATTek :said by raythompsontn : Fiber does not use "green light". Incorrect. Any light will travel through a fiber for a short distance. It needn't be a laser. If the pic isn't doctored in some way, then it's likely just a green light to make a nice publicity picture. The Christmas tree question was a valid one......do you really think all of the decorations around that use fiber optic lighting are harmful to your eyes? Yep.
Some short distance fiber equipment even uses low-power LED lighting instead of lasers. -- Pretty Fly for a White Guy | |
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 |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by MattE :Some short distance fiber equipment even uses low-power LED lighting instead of lasers. An LED is not just "any light" and in fact produces a narrower spectrum than just "any light".
LED's are indeed used for short length communications. To get the most distance, with minimal losses, requires the much purer light of a laser system. The characteristics of the fiber are matched to the very narrow frequency of the laser. To obtain the speeds mentioned in the article requires a laser, even for the short distances. LEDs would simply not do the job.
Fibers used on Christmas displays are not very powerful, they are not lasers, and certainly do not come close to the affects of a true green laser.
»www.mayoclinic.org/news2005-rst/2800.html »www.electrooptics.com/features/f···ure_id=6
If you want to know about the dangers of green lasers. A web search will quickly show that green lasers, used improperly, are indeed a significant hazard.
Looking at the output end of a high speed link driven by lasers is just plain stupid. | |
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 |  |  |  |  |  |  Telukin Premium join:2004-03-26 UK | Re: Brilliant Picture So article about fiber comms (that uses laser) coupled with a stock photo of someone holding some fiber and being illuminated by the light from it means that the light in the photo must be a laser? Come on, lighten up. | |
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 |  |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by Telukin :So article about fiber comms (that uses laser) coupled with a stock photo of someone holding some fiber and being illuminated by the light from it means that the light in the photo must be a laser? Come on, lighten up. The implication is there. And leave my weight out of this discussion. | |
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 |  |  |  |  |  |  nitestop
join:2004-05-31 Ventura, CA | Yes Believe me laser damage to the eyes SUCKS. Any laser will Damage your eyes, certain types are much more severe. It's the colors you cant see that are real bad. | |
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 |  |  |  |  bogey780
join:2004-03-19 Covington, LA | Having any light source directed into the eyes is not a good idea. Angled light of relativistic ambient intensity is fine but directed light significantly brighter than ambient lighting can be damaging. | |
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 |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| said by ATTek :said by raythompsontn : Fiber does not use "green light". Incorrect. Any light will travel through a fiber for a short distance. It needn't be a laser. Ok, then try and use "any light" to communicate through a fiber. Laser light is used because it is pure and does not suffer from degradation over distance that "any light" suffers. It is also easy to modulate the light. Try to modulate "any light" and measure your success. Try and get "any light" to travel more than a few feet through a fiber. It ain't gonna work. Again, lasers are used because the diameter of the fiber is matched to the frequency of the laser to reduce losses and interference.
For the photograph they may have used "any light" but the impression is designed to promote fiber communication and that requires a laser modulated beam. | |
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 |  |  |  |  |  viperlmw Premium join:2005-01-25 | Re: Brilliant Picture Ever heard of 'multimode'? It uses LEDs as the light soruce, for short, in building runs, and has a larger core. 'Singlemode' fiber uses lasers. | |
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 |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by viperlmw :Ever heard of 'multimode'? It uses LEDs as the light soruce, for short, in building runs, and has a larger core. 'Singlemode' fiber uses lasers. Yep. Keyword in all of this is distance. Floor to floor within a building is not much distance. Distance without losses requires closely matched components. | |
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 |  |  |  |  |  |  |   hopeflicker Capitalism breeds greed Premium join:2003-04-03 Long Beach, CA
| Re: Brilliant Picture said by raythompsontn :said by viperlmw :Ever heard of 'multimode'? It uses LEDs as the light soruce, for short, in building runs, and has a larger core. 'Singlemode' fiber uses lasers. Yep. Keyword in all of this is distance. Floor to floor within a building is not much distance. Distance without losses requires closely matched components. a striking resemblance of user: Signmeuptoo ,»/useremail/u/520600
hummm... -- People pray to God because they're told to. | |
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 |  |  |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture Not sure what you mean by that comment. Should I be wearing my tinfoil underwear or other such body armor?  | |
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 |  |  |  |  |  |  |  |  |   hopeflicker Capitalism breeds greed Premium join:2003-04-03 Long Beach, CA
| Re: Brilliant Picture said by NYR 56 :I'm impressed hopeflicker and think you hit the nail on the head. Sounds just like him. Striking, isn't it? 
Never understood why people make more than 1 account on these sites. What do you have to hide  -- People pray to God because they're told to. | |
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 |  |  |  |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN | Re: Brilliant Picture Well, in this case you would be markedly wrong buttermilk breath. | |
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 |  |  |  |  |  |  |  |  |   hopeflicker Capitalism breeds greed Premium join:2003-04-03 Long Beach, CA
| Re: Brilliant Picture said by raythompsontn :Well, in this case you would be markedly wrong buttermilk breath. relax, it's just a hunch  -- People pray to God because they're told to. | |
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 |  |  |  |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by hopeflicker :relax, it's just a hunch  I guess my amusement did not convey well in the message. I was, shall we say, "blinded by the light." | |
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 |  |  |  |  |  |  |  |  |   MattE Obama '08 Premium join:2003-07-20 Jamestown, NC
·North State Commun..
·Corporate Colocation
| Re: Brilliant Picture said by raythompsontn :said by hopeflicker :relax, it's just a hunch  I guess my amusement did not convey well in the message. I was, shall we say, "blinded by the light." You sure you're not blinded by all that nuclear radiation in Oak Ridge?
(My daughter lives in Knoxville, so I'm familiar with the area.) | |
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 |  |  |  |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by MattE :You sure you're not blinded by all that nuclear radiation in Oak Ridge? Nah. But some could argue that I should glow in the dark just like the lady in the picture. Maybe not green but a nice shade of blue would be nice. | |
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 |  |  |  |  |  |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| said by NYR 56 :Also, you have been proved wrong, admit it, instead of rambling on with more technical posts to cover yourself. If you think people are going to go blind over a picture on DSLR then you better hope they don't venture into the rest of the internet either. No one has proven anything about being wrong. The photo is there. It clearly shows someone looking at the output of a fiber system. High speed, long distance fiber systems are driven by laser emitters, not LED emitters.
I provided links about the dangers of green lasers. If you think they are safe then continue to shine them in your eyes. It won't bother me.
As for going blind from a photo I think that was myth perpetuated by my parents when they found that Playboy magazine.  | |
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 |  |  |   TheBoz
@insightbb.com | If it was a laser would like you say it was would it not be a point of light and not a big patch of light on face. Its probally LEDs thats being used. IMHO | |
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 |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: Brilliant Picture said by TheBoz :
If it was a laser would like you say it was would it not be a point of light and not a big patch of light on face. Its probally LEDs thats being used. IMHO Oh, I suspect that you are correct. I would also speculate that even with LED illumination the spot on the face would not be that large. The image was probably photoshopped to enhance the effect.
Regardless, I still feel the image promotes a very unsafe practice. One should never look at the output of any fiber system, period. Even knowing the emitter source is no guarantee. You only have two eyes and they cannot be replaced. | |
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 |  |  |  |  |   rosco Lumbergh Premium join:2003-11-10 Catskill, NY | Re: Brilliant Picture If those fibers were part of a fiber system, wouldn't they have some sort of jacketing?
Chill out raythompsontn. | |
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 |  quatrix
join:2005-02-11 Davie, FL | I thought Slimer got her. | |
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 |  maxpower
join:2006-10-09 Providence, RI edit: November 27th, @07:21PM
| Something tells me shes gonna be ok..Maybe shes performing Korean Lasik? When will we get PFTTH? | |
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 |  See 10 replies to this post |
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  swhitney2003 quack. Premium join:2003-06-13 Weare, NH | Green laser...light... Those are some sweet safety glasses | |
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 |   Jigsaw Stardust We Are Premium join:2000-10-21 Cleveland, OH
·Cox HSI
| Re: Green laser...light... Kind of look like these glasses. | |
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  jgkolt Premium join:2004-02-21 Lakewood, OH clubs: | so What does that do for me here in the states? | |
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 |   jhawk44
join:2006-10-19 USA | Re: so As usual: nothing. You have to wait 20 years for the US to catch up to "today's technology" when to the rest of the world it's "yesterday's technology" | |
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 |  |   MadMANN Premium join:2005-08-19 | Re: so It means nobody cares. The 28 comments before yours seemed to be more fascinated with the little green light in the photo. | |
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 |  |  |   fsdgsdfg
@chevrontexaco.com
| Re: so exactly.. i want 30 seconds of my life back.
Instead of discussing the technology and its impact on the industry there is a huge debate on the safety of green lasers in the eye and whether the photo is real or not. who cares!
What impact will this have on the penetration of fiber in the broadband market? | |
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 |  |  |  |  raythompsontn
join:2001-01-11 Oliver Springs, TN
| Re: so said by fsdgsdfg :
What impact will this have on the penetration of fiber in the broadband market? And what real impact is FTH going to have overall? Seriously.
I do not find that I need a faster connection as most of the slowdowns are from the originating web site, not in my connection.
Do I want TV over fiber? Not really as cable is working fine.
Do I want phone over fiber? Why when wireless works just as well?
I find nothing that fiber can do that is not already being done with cable. FTH, regardless of the speed, will do nothing.
I find it more interesting discussing the photo than the merits of FTH. Both are fairly meaningless. | |
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  batterup I Can Not Tell A Lie. Premium join:2003-02-06 Netcong, NJ clubs: | What was the name of that company? A US of A company used to develop all of the worlds best communication ideas. The name doesn't ring a BELL. | |
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 |   ninjatutle
join:2006-01-02 San Ramon, CA | Re: What was the name of that company? Well, a US company probably probably laid the ground works for this. Asian companies are notorious for reverse engineering our products and designs. | |
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  N O Y B St. John 3.16
join:2005-12-15 Forest Grove, OR | What is the Big Deal? Copper Can do 10 Gbps What is the Big Deal? Copper Can do 10 Gbps, 4 times more than this junk. | |
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 |   Benhadad1
@sbcglobal.net
| Re: What is the Big Deal? Copper Can do 10 Gbps Well the big deal might be that copper will end up costing more perhaps in the future. In the case of china they can not afford to deploy cable/copper and thus are turning to wireless to get basic services. I think it was estimated to cost around $200 billion to provide copper services to most of china (basic DSL or cable).
Plastic fiber would not put the same strain on resources and would be easier to work with than glass based fiber. | |
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 |   jhboricua ExMod 2000-01 join:2000-06-06 Minneapolis, MN clubs:
| said by N O Y B :What is the Big Deal? Copper Can do 10 Gbps, 4 times more than this junk. Perhaps you should learn more about the distance limitations of copper before making such an absurd comment.
Or are you calling this junk out of misplaced patriotism? -- "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe." - Albert Einstein Jose A. Hernandez * System Admin * MPLS, Minnesota, USA * | |
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 tmc8080
join:2004-04-24 Floral Park, NY
| No point. All this means is that more than one company got to the next stage of fiber optics design. While there is much interest in getting these kinds of fibers into MDU (multiple dwellings) where you have to BEND THE CABLE, U.S. companies are still waiting for this to be MASS PRODUCED (could take years). In addition to this, we're also waiting for new standards of laser transmission that make 2.5gbps look like a dsl modem. Records are being broken for single fiber wavelength transmissions of 40-100gbps. This equipment is also years down the 'pike' from full implementation. Provided companies have the will to deploy such things... the longer it takes to get started, the longer it will take to see services that pale in comparison to today's speeds. Although it's possible, that one day we will wake up and have internet throughput speeds that challenge our hard drives to keep up that day is still well over 10 years out, but then again hard drives might just become "flash drives" and then the race begins anew. | |
|
  Mr Kentucky
@alltel.net
| Great News! I would imagine this would be of lower price than regular fiber, And easier to make?
Well, it would be wonderful if this enabled DSL companies that have their finger stuck up there hole.. to maybe go ahead and invest in the future.. rather than hold onto the past.
I mean plastic is definitely cheaper than metal..
And I doubt this would happen, but it would sure be nice if more ISP went.. with Naked DSL. I hate having to have phone with the dang DSL... | |
|
 playboy2000
join:2005-05-30 Calgary, AB
| Distance? Anyone know what sort of distance the 2.5gbit/s can be transmitted over? If it's anything less than 5km, then this is of little use. If it can send a gigabit ethernet signal 10-15km, then I can see this as being a huge breakthrough in pushing fiber closer to the home or for the moment, at least moving the node close enough for 50mbits over vdsl2. The only other concern is how well it integrates with existing glass fibre. | |
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