2-D monolithic coherent semiconductor laser array

Details 2-D monolithic coherent semiconductor laser array 2-D monolithic coherent semiconductor laser array

1992-03-12

1994-01-04

Epps, Georgia Y.

Coherent light generators

Particular active media

Semiconductor

372 45, 372 46, 372 48, 372 23, 372 97, H01S 319

Patent

active

052767000

ABSTRACT:
This invention discloses a semiconductor laser incorporating a plurality of resonant optical waveguide array cells. In each of the resonant optical waveguide array cells, leaky waveguide elements are coupled together such that radiation leaked from one antiguide element is coupled with radiation propagating along another antiguide element across an interelement region. As the radiation propagates through the array it is reflected at each end of the array until it builds up enough optical gain to reach lasing threshold. Then, radiation is leaked from the sides of each array such that this radiation can impinge other resonant optical waveguide arrays and be coupled with these arrays in phase to develop a laser beam having a higher intensity than can be achieved with a single array semiconductor laser.

REFERENCES:
patent: 4860298 (1989-08-01), Botez et al.
patent: 5063570 (1991-11-01), Botez et al.
patent: 5101413 (1992-03-01), Botez
Botez, et al., Phase-Locked Arrays of Antiguides: Modal Content and Discrimination, "IEEE Journal of Quantum Electronics", vol. 26, No. 3, Mar. 1990, pp. 482-495.
Mawst, et al., High-Power, Narrow-Lobe Operation from 20-Element Phase-Locked Arrays of Antiguides, "Appl. Phys. Lett . . . ", 55(20), 13 Nov. 1989, pp. 2060-2062.

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