Optical amplifier

Details Optical amplifier Optical amplifier

H - Electricity

01

S

H01S 3/091 (2006.01) G01R 31/26 (2006.01) H01S 3/13 (2006.01) H01S 3/131 (2006.01) H01S 5/0683 (2006.01) H01S 5/50 (2006.01)

Patent

CA 2127486

Various optical amplifier configurations are disclosed. In one configuration, an optical amplifier provides an amplified output signal through use of a pumping device. The output signal is split to an output and a feedback input. The feedback signal is converted to a current which is sensed by a controller. The controller adjusts the amount of current to the pumping device in various instances. In one instance, the current is controlled to prevent overdriving the pumping device. In another instance, the current is controlled to maintain the output signal at a substantially constant level. In another configuration, the optical amplifier is coupled to a ratio computation block which measures the operating efficiency of the pumping device. Additional components detect an undesirable efficiency and provide a warning of the same.

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