OPTICAL SIGNAL TRANSMITTER

摘要

An optical signal transmitter includes first and second modulation units, a combiner, and a control unit. The first and second modulation units generate first and second modulated optical signals, respectively. The combiner combines the first and second modulated optical signals to generate a polarization multiplexed optical signal. The control unit controls at least one of the first and second modulation units so that the optical powers of the first and second modulated optical signals become approximately equal to each other.

主权项

1. An optical signal transmitter comprising:
an intensity modulation unit configured to adjust an intensity of first and second wavelength components; a demultiplexer configured to extract the first and second wavelength components; a first modulation unit configured to generate a first modulated optical signal from the first wavelength component obtained by the demultiplexer; a second modulation unit configured to generate a second modulated optical signal from the second wavelength component obtained by the demultiplexer; a multiplexer configured to multiplex the first and second modulated optical signals to generate a multiplexed optical signal; and a control unit configured to control the intensity modulation unit so that optical powers of the first and second modulated optical signals become approximately equal to each other.