Multi-wavelength light source

Details Multi-wavelength light source Multi-wavelength light source

2007-08-07

2007-08-07

Pascal, Leslie (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S087000, C398S091000, C398S180000, C398S201000

Reexamination Certificate

active

10771793

ABSTRACT:
A multi-wavelength light source unit for optical communication system is disclosed. The light source includes a demultiplexer for demultiplexing a multiplexed light signal into a plurality of lights having different wavelengths and a multiplexer that receives the demultiplexed lights and multiplexes the demultiplexed lights into the multiplexed light signal. Input ports of the multiplexer are respectively port-to-port connectable to each one of a plurality of output ports of the demultiplexer. The light source unit includes a plurality of semiconductor optical amplifiers amplifying the demultiplexed lights output form the demultiplexer, and a plurality of beam splitters for splitting the amplified demultiplexed lights into two parts, so as to provide the respective input ports of the multiplexer with a split part of the lights, while to transmit the other part of the lights out of the beam splitters.

REFERENCES:
patent: 5524118 (1996-06-01), Kim et al.
patent: 6331907 (2001-12-01), Miyazaki et al.
patent: 08-078787 (1996-03-01), None
patent: 10-093164 (1998-04-01), None

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