Fiber-optic amplifier with control of the pump light wavelength

Details Fiber-optic amplifier with control of the pump light wavelength Fiber-optic amplifier with control of the pump light wavelength

1993-02-19

1994-11-08

Healy, Brian

Coherent light generators

Optical fiber laser

372 69, 372 70, 385 27, 385 42, 385 31, 385 38, 359333, 359341, 359345, H01S 330, H01S 3091

Patent

active

053633857

ABSTRACT:
A fiber-optic amplifier for use with optical communications systems includes a light waveguide piece for amplifying an optical input signal. A pump light source is coupled to the amplifying light waveguide piece and includes a semiconductor laser for generating pump light for the amplifying light waveguide piece. A control device regulates the wavelength of the pump light generated by the semiconductor laser to be within a desired wavelength range so that the pump light is maximally absorbed in the amplifying light waveguide piece.

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Chen et al., "Structural and Compositional Control of the Output Wavelength of Very High Power 0.98 .mu.m GaInAs Lasers for Pumping Fiber Amplifiers", IEEE Photonics Tech. Ltrs., vol. 3, No. 8, Aug. 1991, pp. 694-696.

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