Asymmetric dual waveguide laser

Details Asymmetric dual waveguide laser Asymmetric dual waveguide laser

1995-04-24

1996-06-18

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 92, 372 99, H01S 319

Patent

active

055286160

ABSTRACT:
An apparatus is described for obtaining single frequency laser operation in a coupled waveguide configuration without using a diffraction grating. More specifically, this invention is a laser structure for oscillating light in single longitudinal mode. This structure has a pair of coupled but dissimilar waveguides that are collinear with each other and separated by a mirror in contact with each of the guides. The length of the waveguides are adjusted so that frequency selective coupling between the waveguides can discriminate between wavelengths corresponding to different longitudinal modes.

REFERENCES:
patent: 4715672 (1987-12-01), Duguay et al.
patent: 4730327 (1988-03-01), Gordon
patent: 5343542 (1994-08-01), Kash et al.
patent: 5422898 (1995-06-01), Kash et al.

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