H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/16 (2006.01) H01S 3/067 (2006.01)
Patent
CA 2607364
An optical amplifier including: an amplifier having an input port and an output port, which is disposed along a main signal line of the optical amplifier; a dummy laser generation circuit having an output coupled to the main signal line and operative for inputting a dummy signal into the amplifier; a first optical detector for detecting a power level of the dummy signal into the amplifier and outputting a first power level signal; a second optical detector for detecting an amplified power level of the dummy signal output by the amplifier and outputting a second power level signal; a memory device for storing calibration data regarding the gain characteristics of the amplifier; and a gain control circuit which receives inputs from the first optical detector and second optical detector, and has an output coupled to the amplifier. The gain control circuit operates to control the gain of the amplifier based on the first power level signal, the second power level signal and the calibration data.
Grossman Daniel B.
Li Ruoding
Weeks William
General Instrument Corporation
Gowling Lafleur Henderson Llp
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