Laser device, notably for optical pumping, and method of fabrica

Details Laser device, notably for optical pumping, and method of fabrica Laser device, notably for optical pumping, and method of fabrica

1996-11-20

1998-02-10

Healy, Brian

Coherent light generators

Particular resonant cavity

Specified cavity component

372 7, 372 19, 372 43, 372 92, 372 98, 385 49, 385 37, 385 88, 437129, H01S 308, G02B 630, H01L 2120

Patent

active

057177112

ABSTRACT:
In a laser device, notably for optical pumping, the wafer includes an expansion segment adjacent the exit to prevent degradation of the exit facet of the semiconductor wafer that constitutes the amplifying part of the laser. The other facet is reflective and a Bragg grating is formed in a coupling fiber disposed near the exit facet. Applications include optical pumping of erbium-doped fiber amplifiers.

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M. Sagawa et al, "High power COD-free operation of 0.9.mu.m InGaAs/GaAs/InGaP Lasers with non-injection regions near the facets", Electronics Letters, vol. 30, No. 17, Aug. 18, 1994, pp. 1410-1411.
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