光纖上網成主流　用戶數超越ADSL

http://tw.news.yahoo.com/article/url/d/a/101117/52/2h8um.html

速度有望達 100Gbps：英特爾在以色列國防軍繼續展示光峰光纖接口

來自：驅動之家

    以色列國防軍 2010上，英特爾繼續展示著自己極為看重的光峰光纖接口技術，並擺放了兩套演示平台。

光峰技術是在整整一年前的以色列國防軍 2009上首次宣布的，由蘋果提出創意，英特爾具體開發，目前傳輸速度高達 10Gbps的，未來更可提升至100Gbps，而且單條線纜同時支持多種不同協議，並支持菊花鏈，延遲也很低。在英特爾的規劃中，光峰值將在未來一併取代USB接口，HDMI接口，DisplayPort的等各種傳輸接口，事實上這也是英特爾遲遲不肯原生支持的USB 3.0的重要原因之一。

這次的第一套展示系統重點是一台仁寶代工製造的筆記本，與一台的Avid高清的I / O轉接盒相連，另外還有一個配備輕山頂接口的西部數據外置硬盤，一個 HDMI接口適配器，同工傳輸 1080p的全高清視頻，走遍的戴爾顯示器還在播放另一端未經壓縮的視頻。

英特爾解釋說，光峰可以讓 Avid公司轉接盒將不同協議的控制轉交給仁寶筆記本軟件，充足的帶寬則可以輕鬆傳輸未壓縮的超高碼率高清視頻，無損音頻。

        光峰，HDMI接口轉接盒再次登場，不過看起來比以前小多了，現在基本和一張信用卡差不多，而且也沒有外置輔助供電。

(WeiPhone)

感測系統新發明 「光纖」 品質佳

 

〔記者洪定宏／高雄報導〕傳統電訊感測系統監控橋梁及邊坡異狀時，很容易受到電磁波干擾而故障或誤判，為改善此一缺點，國立高雄大學電機工程學系教授施明昌與土木與環境工程學系主任俞肇球運用光纖傳導特性，開發出光纖感測系統，不但精準迅速，成本更只要國外類似產品的一半。

 

施明昌和俞肇球用新一代光纖「光閘（Grating）」技術，原理類似光線照進百葉窗所產生的光影明暗變化，當明暗間隔出現不正常的變化，意即監控點將發生危險，可發出通報及早應變。

 

施明昌表示，傳統感測器多採電子式感應，以銅質電纜線佈線，容易受電磁波干擾出現誤判狀況，或因埋設位置潮濕短路故障。

 

此外，接收設備的操作介面未中文化、不夠人性化，以及程式封閉無法再擴充也常令人詬病，若送到國外維修，往返至少耗時兩星期。

 

施明昌強調，光纖相對比銅線便宜，且不像銅線會因鏽蝕造成短路，不受電磁波干擾品質相對穩定。

 

目前實驗室測試可佈線達10公里、30幾個點，技術開發由施明昌主導，信號判讀由俞肇球負責，接收器及感測器均可自主開發，不僅技術不再受制於國外廠商，還能針對不同需求客製化。

(Yahoo!)

Intel's Optical Breakthrough Downloads an HD Film in a Second, Literally

Transfer a song to your phone. Seems pretty fast, right? Now imagine transferring the entire printed catalog of the Library of Congress in a minute and a half. Intel says they've got the technology to make it happen (eventually).

Intel detailed their breakthrough to the press at an event today, marking the milestone of impressive 50 gigabits per second transfer speeds using an underlying technology that could go much, much further. We've covered the promise of fiber optic speeds before, but nothing like this. Intel CTO Justin Rattner explained just what "silicon photonics" even means, why the world needs it, and what it promises in the near future.

Silicon photonics is, simply, the combination of optical technology with traditional silicon chip manufacturing techniques—the same processes used to make all of our CPUs and GPUs. By employing existing methods, turning data into light and back again will be affordable.

The fundamental process is that of transferring data by converting electrons—which are what make the device you're reading this on right now work—into photons. Intel's photonic technology uses a dazzling bit of engineering—and I do mean dazzling, as we're on the scale of your fingernail—to encode data into laser streams. These streams converge into one, and travel along a fiberoptic strand to their destination, where they are decoded from light back into electrons.

Why would we need anything as complicated and sophisticated as this? The fact of the matter is that we're nearing the limit of what we can do with electrons—and there's no arguing with physics. Once we get in the realm of 10 gigabit transfer speeds, we've pushed copper wiring about as far as it will go without degrading the signal beyond usefulness. And with the mind boggling volume of data swirling around—HD movies, lossless audio, high resolution photos—what might sound excessive today will be essential sooner than we think.

Intel's fiber connection, on the other hand, can take us farther and faster. Immensely so. At the speed Intel has announced today, you could download an HD film from iTunes or 100 hours of music in less than a second. And if they reach their theoretical potential of 1 terabit per second, you could slurp down three seasons of an HD show or backup your entire harddrive in the same amount of time.

Rattner said Intel hopes to have silicon photonics "widely deployed" by mid-decade, though holding one's breath in cases like this is usually a bad idea. We asked Intel, after hearing them tout the advantages silicon photonics offers for consumer devices, whether we could expect to see this technology replacing USB within this timeframe, prompting them to stress that the significance of the breakthrough is in its potential, not its concrete applications—commercial adoption will hinge on the market and manufacturing factors. Still, they have proven the technology works, and works well. For now, I can safely say that they have preemptively ruined USB 3.0 for me. [Intel Silicon Photonics Research]