Optical transmission apparatus

Details Optical transmission apparatus Optical transmission apparatus

2006-08-17

2010-02-09

Vanderpuye, Ken N (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S189000, C398S190000, C398S191000, C398S079000

Reexamination Certificate

active

07660535

ABSTRACT:
Before being incident to a nonlinear medium, a short pulse is intensity-modulated with a bit string pattern, and then made incident. When the pulse light corresponding to a bit value ‘0’ is incident to the nonlinear medium, the pulse light is intensity-modulated so that the spectral width thereof is not spread to a predetermined spectral region due to the nonlinear phenomena, thereby producing a light state of being not output from an optical demultiplexer. Meanwhile, when the pulse light corresponding to a bit value ‘1’ is incident to the nonlinear medium, the pulse light is intensity-modulated so that the spectral width thereof is spread to the predetermined spectral region due to the nonlinear phenomena, thereby producing a light state of being output from the optical demultiplexer.

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