Multi-mode laser oscillator with large intermode spacing

Details Multi-mode laser oscillator with large intermode spacing Multi-mode laser oscillator with large intermode spacing

1999-01-05

1999-10-26

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Mode discrimination

372 69, 372 70, 372 10, 372108, H01S 3098

Patent

active

059740604

ABSTRACT:
A laser crystal (25) having a relatively short optical length functions as a seed laser (1) and simultaneously establishes the wide separation between longitudinal modes. Pulsed operation causes multiple longitudinal modes to co-exist before competition acts to extinguish modes. The seed laser (1) is isolated from the relatively higher peak power output beam (4). Further, the injection seeded slave resonator (6) optical cavity length is adjusted by mechanical, electromechanical and/or electro-optical component(s) to harmonize the slave resonator optical cavity to the seed laser (1) optical cavity. A number of widely separated longitudinal modes are simultaneously output as a pulsed, high optical quality beam having a broad frequency range, short temporal coherence, and stable simultaneous operation of the several modes.

REFERENCES:
patent: 4410992 (1983-10-01), Javan
patent: 4752931 (1988-06-01), Dutcher et al.
patent: 5099486 (1992-03-01), Acharekar et al.
patent: 5235505 (1993-08-01), Rines et al.
patent: 5305334 (1994-04-01), Margalit et al.

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