H - Electricity – 01 – L
Patent
H - Electricity
01
L
345/16
H01L 31/12 (2006.01) G02B 6/42 (2006.01) H01L 31/153 (2006.01) H01L 33/00 (2006.01) H01S 5/06 (2006.01) H04B 10/17 (2006.01)
Patent
CA 1106482
UNIDIRECTIONAL OPTICAL DEVICE AND REGENERATOR Abstract of the Disclosure A light-activated light-emitting device has at least one p-n junction provided with electrodes for confining light-emission to an area of the junction. It has been determined that light-emission can be activated by light impinging on the junction outside this confined area, so two optical fibers are provided, one being an input fiber for bringing activating light to the nonemitting sensitive part of the junction and the other fiber being an output fiber coupled to the light-emitting area. When the device is a p-n-p-n light-activated light-emitting switch provided with an RCL reset control circuit, a very inexpensive unidirectional optical pulse regenerator is obtained. The device in its various forms is advantageously suited for use in each of many stations along optical fiber data busses or in optical logic arrays because the unidirectional feature prevents light feedback between adjacent devices and consequently avoids spurious switching of a preceding device. COPELAND, J. A. III 33-2-3
316700
Copeland John A. III
Dentai Andrew G.
Lee Tien P.
Kirby Eades Gale Baker
Western Electric Company Incorporated
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