Optical transmitter and optical communication system

Details Optical transmitter and optical communication system Optical transmitter and optical communication system

1997-06-13

1999-10-26

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359182, 359183, 359173, H04B 1000

Patent

active

059738120

ABSTRACT:
An optical transmitter and an optical communication system, each for providing a good transmission characteristic of a main signal and allowing suppression of SBS (stimulated Brillouin scattering). The optical transmitter comprises a light source for outputting a carrier beam, an optical modulator for modulating the carrier beam based on a main signal and sending out an optical signal into an optical fiber transmission line, an oscillator for outputting a low frequency signal, a first circuit for frequency or phase modulating the carrier beam based on the low frequency signal, and a second circuit for superposing an opposite phase signal having a phase opposite to that of the low frequency signal with the main signal and supplying a resulting signal to the optical modulator.

REFERENCES:
patent: 5329396 (1994-07-01), Fishman et al.
patent: 5420868 (1995-05-01), Chraplyvy
patent: 5473461 (1995-12-01), Miremadi
patent: 5477368 (1995-12-01), Eskildsen et al.
patent: 5550667 (1996-08-01), Krimmel et al.
patent: 5566381 (1996-10-01), Korotky

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