Light source arrangement in an optical communication system

Details Light source arrangement in an optical communication system Light source arrangement in an optical communication system

1980-05-28

1982-07-27

Lee, John D.

Multiplex communications

Wide area network

Packet switching

350 9618, 370 3, 455612, G02B 5172, H04B 900

Patent

active

043414389

ABSTRACT:
The operational reliability of a light source in an optical communication system has been increased by an improved redundant arrangement of light sources and the switching arrangement of the same. The present light source arrangement comprises a plurality of light sources each of which provides a different wavelength from one another, an electrical switch for actuating the selected one of the light sources, said electrical switch being arranged to replace the actuated light source when there is something wrong with the light source in operation, and an optical multiplexer the input of which is coupled to the outputs of the light sources, and the output of the optical multiplexer is connected to an optical fiber cable.

REFERENCES:
patent: 3825335 (1974-07-01), Reynolds
patent: 4111524 (1978-09-01), Tomlinson
patent: 4244045 (1981-01-01), Nosu et al.
"An Internal Reflection Film Type Micro-Optic Circuit", article S3-13, 1978, Gen Mtg. of IOE&C of Japan, pp. 4-244 to 4-256.

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