Laser with longitudinal mode selection

Details Laser with longitudinal mode selection Laser with longitudinal mode selection

1992-05-22

1993-09-07

Gonzalez, Frank

Coherent light generators

Particular beam control device

Mode discrimination

372 6, 372 94, 372102, H01S 330

Patent

active

052436098

ABSTRACT:
A laser is fabricated from an optical transmission medium having a laser cavity with an rare earth (e.g. Erbium) doped portion. At least one longitudinal mode is suppressed using a plurality of series coupled Fabry-Perot cavities, an optical grating, or a combination thereof. Ring lasers, Sagnac cavity lasers, Fox-Smith cavity lasers, and linear structures are disclosed.

REFERENCES:
patent: 4435808 (1984-03-01), Javan
patent: 4852960 (1989-08-01), Alferness et al.
patent: 5077746 (1991-12-01), Ewart
patent: 5166940 (1992-11-01), Tumminelli et al.
patent: 5166941 (1992-11-01), Hackel
C. M. Ragdale, et al., "Narrowband Fiber Grating Filters," IEEE Journal on Selected Areas in Communications, vol. 7, No. 6, Aug. 1990, pp. 1146-1150.

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