Linearized Optical Transmitter Using Feedback Control

Details Linearized Optical Transmitter Using Feedback Control Linearized Optical Transmitter Using Feedback Control

2003-05-01

2008-03-04

Bello, Agustin (Department: 2613)

Optical communications

Transmitter

Including compensation

C398S195000

Reexamination Certificate

active

07340184

ABSTRACT:
Apparatus and methods for linearizing an optical transmitter are described. A linearized optical transmitter according to the present invention includes a modulator bias voltage supply that biases an optical modulator. The optical modulator modulates an optical signal with a payload modulation signal. A feedback circuit receives electrical distortion signals generated by the modulator and generates a control signal in response to at least one of the electrical distortion signals. The control signal changes the bias voltage generated by the modulator bias voltage supply so as to reduce the at least one electrical distortion signal.

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