Laser module including grooved silicon substrate, isolator and o

Details Laser module including grooved silicon substrate, isolator and o Laser module including grooved silicon substrate, isolator and o

1995-08-25

1996-10-15

Healy, Brian

Optical waveguides

With optical coupler

Particular coupling structure

385 11, 385 14, 385 15, 385 52, 385 88, 385 92, 385 94, 372108, G02B 630, H01S 308

Patent

active

055662641

ABSTRACT:
The laser module couples its semiconductor laser to an optical device, e.g. an optical fiber, particularly a monomode fiber. The laser module includes a micromechanically structured silicon substrate (31) provided with an elongated groove (30) having a longitudinal axis by an anisotropic etching technique; a semiconductor laser (110) mounted on the silicon substrate (31) to emit light parallel to the longitudinal axis of the elongated groove; an optical coupling device including an isolator (10) positioned on the silicon substrate (31) so that light from the semiconductor laser (110) passes therethrough and a sealed housing (50) inside of which the silicon subtrate (31), the semiconductor laser (110) and the isolator are contained. At least a portion of the optical components mounted in the elongated groove and not rotationally symmetrical with respect to forward light transmission properties are each provided with at least one flat edge surface (210,210') bearing on an anisotropically etched wall of the elongated groove (30).

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patent: 5113404 (1992-12-01), Gaebe et al.
patent: 5216737 (1993-06-01), Driessen et al.
patent: 5325456 (1994-06-01), Cullen et al.
patent: 5416869 (1995-05-01), Yoshino

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