Self-seeding method and apparatus for dual cavity type tunable l

Details Self-seeding method and apparatus for dual cavity type tunable l Self-seeding method and apparatus for dual cavity type tunable l

1995-03-01

1997-05-27

Bovernick, Rodney N.

Coherent light generators

Particular beam control device

Tuning

372102, H01S 310

Patent

active

056338848

ABSTRACT:
Self-seeding method and apparatus for a dual cavity type tunable laser utilizing a diffraction grating are disclosed, in which first diffracted beams and 0th diffracted beams are utilized. The self-seeding method and apparatus for a dual cavity type tunable laser are constituted such that two oscillators are internally provided by utilizing a diffraction grating and by making a single medium shared, so that the respective oscillators would serve as a master oscillator and a slave oscillator, thereby making it possible to save optical devices. Further, in the present invention, only one partially reflecting mirror is disposed on the output portion of a GIM (grazing incidence with tuning mirror) type oscillator, so that a self-seeding would occur, and that the laser output would be greatly amplified with the oscillation linewidth maintained without variations.

REFERENCES:
patent: 5230005 (1993-07-01), Rubino et al.
"Optics Letters" vol. 20, No. 7, Apr. 1, 1995, Published New York, U.S.

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