Q-switch laser method and apparatus

Details Q-switch laser method and apparatus Q-switch laser method and apparatus

1997-08-01

1999-05-18

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Q-switch

372 98, 372 92, 372 9, H01S3/11

Patent

active

059057467

ABSTRACT:
A Q-switch laser apparatus includes a laser cavity formed with a pair of reflective surfaces having a laser medium mounted therebetween and a power supply operatively connected to the laser cavity to pump the laser medium. An electro-optic Q-switch is mounted in the laser cavity in a saturable absorber of less than 100% saturable transmittance is located in the laser cavity between the laser medium and the electro-optic Q-switch for suppressing prelasing in the laser. The saturable absorber may be a Cr4+:YAG used with an electro-optic Q-switch of LiNbO.sub.3. The method includes selecting the laser apparatus and selecting a saturable absorber of less than 100% saturable transmittance and attaching the selected saturable absorber in the laser cavity between the laser medium and the electro-optic Q-switch for suppressing prelasing therein.

REFERENCES:
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patent: 5005176 (1991-04-01), Lam et al.
patent: 5355383 (1994-10-01), Lockard
patent: 5381431 (1995-01-01), Zayhowski
patent: 5388114 (1995-02-01), Zarrabi et al.
patent: 5394413 (1995-02-01), Zayhowski
patent: 5646952 (1997-07-01), Whittley

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