Long‐pulsed Nd:YAG frequency‐doubled laser for optical measurements of high‐velocity phenomena
作者:
Masakazu Uchino,
Gang Yuan,
Tsutomu Mashimo,
期刊:
Review of Scientific Instruments
(AIP Available online 1995)
卷期:
Volume 66,
issue 12
页码: 5455-5458
ISSN:0034-6748
年代: 1995
DOI:10.1063/1.1146068
出版商: AIP
数据来源: AIP
摘要:
A long‐pulsed neodymium‐doped yttrium aluminum garnet (Nd:YAG) frequency‐doubled laser with no Q‐switch was constructed for optical measurements of high‐velocity phenomena. The laser consists of a doubled‐elliptical pump cavity with a Nd:YAG rod and two xenon flash lamps, an intracavity potassium titanyl phosphate crystal, and a high‐voltage electrical‐pulse source. A narrow‐band‐stimulated emission at the frequency‐doubled 532‐nm wavelength was confirmed by a spectrometer. The delay time from a trigger signal and the effective pulse duration were approximately 40 and 65 &mgr;s, respectively. The laser average output power was measured to be larger than 6 kW by a pyroelectric joulemeter. This laser may be used as a flash monowavelength light source, and also as a long‐pulsed single‐mode laser in the visible wavelength region using for example, an intracavity e´talon and/or a brewster plate. ©1995 American Institute of Physics.
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