G - Physics – 02 – B
Patent
G - Physics
02
B
325/1
G02B 6/28 (2006.01)
Patent
CA 1286367
OPTICAL FIBER COMMUNICATIONS SYSTEM WITH OPTICAL FIBER MONITORING Abstract of the Disclosure Optical communications fibers extend from a central office to subscribers' premises for carrying signals in both directions between optical transmitters and receivers. Each subscriber's optical receiver continuously reflects back to its fiber, and thence to the central office, about 20 percent of the light which it receives. At the central office the reflected light is monitored in turn for each subscriber, and is correlated with the signal transmitted to that subscriber to provide a signal for optical time domain reflectometry of the respective subscriber's fiber connection.
586650
Huszarik Fred Armin
So Vincent Choong-Yeong
Vella Paul Joseph
Nortel Networks Limited
Smith Dallas F.
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