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Technology Stocks : The *NEW* Frank Coluccio Technology Forum

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To: Frank A. Coluccio who wrote (4783)	1/1/2002 1:41:10 PM
From: George Dawson	Read Replies (1) of 46821

Happy New Year Frank Very interesting link on arm swinging. I just wanted to make you aware of another one in Science 21 December 2001 p. 2454. It is a news article entitled "Hot New Beam May Zap Bandwidth Bottleneck" that refers to an article posted on www.sciencexpress.org about a breakthrough in mid IR lasers. The application would be free space optical systems that allow the last mile bandwidth gap to be overcome. The technical side is that the authors apparently have been able to design a quantum cascade laser to transmit at the mid IR (9 micrometer) range without burning out. They have an interesting graphic in the article showing the projected increases in the metro and long haul backbones relative to the last mile out to the next 7 years. I am not sure how soon we will all have Gbps receivers on the roof top. I know there is a current demand at the LAN level. The other question is just how effective this wavelength is in bad weather compared with near IR at the same distances (up to 2km). George D.

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