✦ LIBER ✦

Solid-state laser passively Q-switched in a new geometry

✍ Scribed by V.V. Ter-Mikirtychev

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 292 KB
Volume: 29
Category: Article
ISSN: 0030-3992
DOI: 10.1016/s0030-3992(97)81342-4

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✦ Synopsis

A new passive Q-switching geometry of a laser cavity has been proposed. In the proposed scheme, the volume of the passive Q-switch just partially overlaps the intracavity laser beam cross-section, leading, however, to the entire beam modulation. This technique was applied for passive Q-switching of a flash-lamp pumped multimode YAG : Nd 3+ laser by LiF : F? crystals. The giant pulse laser action threshold has been detected in the proposed geometry, and is lower than that in the scheme where the passive Q-switch operates in the traditional manner. Stable giant pulse oscillation of 1064 nm wavelength with a pulse duration of 24 ns, pulse energy of 450 mJ, and pulse repetition rates of up to 100 Hz, have been obtained.

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