External cavity laser

Details External cavity laser External cavity laser

1998-08-31

2000-08-08

Font, Frank G.

Coherent light generators

Particular resonant cavity

Distributed feedback

372 96, 372 98, 372101, 350 96, H01S 308

Patent

active

061012106

ABSTRACT:
External Cavity Laser An external cavity laser comprising first and second feedback means with an optical gain medium (2) therebetween, one of the feedback means is provided by a grating (4) formed in a silicon waveguide and the other feedback means is provided by a reflective back facet (2B) of the optical gain medium (2). The output wavelength of the laser, at a given temperature, can thus be determined during its manufacture and the laser can be made by mass production techniques. The grating (4) may be thermally isolated to obviate the need for temperature control means (6) to control the temperature of the grating (4). An array of lasers may be provided on a single chip.

REFERENCES:
patent: 4911512 (1990-03-01), Yamamoto et al.

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