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Technology Stocks : LUMENON - THE FUTURE OF PHOTONICS -- Ignore unavailable to you. Want to Upgrade?

To: Herc who wrote (28)	11/8/2000 5:10:49 PM
From: Don Johnstone	Read Replies (1) \| Respond to of 41

*At what intervals?* They are called amplifiers(repeaters) and are required about every 62 miles: *** One growing application of optical fibers is in Telecommunications. Because the information-carrying capacity of a signal increases with frequency, the use of laser light offers many advantages. Fiber-optic laser systems are being used in communications networks. Many long-haul fiber communications networks for both transcontinental connections and, through undersea cables, international connections are in operation. One advantage of optical fiber systems is the long distances that can be maintained before signal repeaters are needed to regenerate signals. These are currently separated by about 100 km (about 62 mi), compared to about 1.5 km (about 1 mi) for electrical systems. Newly developed optical fiber amplifiers can extend this distance even farther. *** fwkc.com DJ