Laser with grating feedback unstable resonator

Details Laser with grating feedback unstable resonator Laser with grating feedback unstable resonator

1987-06-30

1989-02-07

Sikes, William L.

Coherent light generators

Particular resonant cavity

Unstable resonator

372 92, 372 96, 372 98, 372 99, 372102, H01S 308

Patent

active

048036960

ABSTRACT:
A laser is disclosed which uses a curved spatial grating in either its reflective or output regions, or both, or distributed throughout the laser resonator, to produce an unstable optical reflection pattern which fills the resonating cavity more efficiently than in prior devices. Various combinations of different grating curvatures are disclosed. The invention is particularly adapted to semiconductor lasers.

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patent: 3675157 (1972-07-01), Kaminow et al.
patent: 3868589 (1975-02-01), Wang
patent: 4464762 (1984-08-01), Furuya
patent: 4646314 (1987-02-01), Opower
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