Pulsed laser beam source device

Details Pulsed laser beam source device Pulsed laser beam source device

1993-03-30

1994-06-07

Bovernick, Rodney B.

Coherent light generators

Thin film laser

372 25, 372 98, H01S 330

Patent

active

053196546

ABSTRACT:
An object of this invention is to provide a pulsed laser beam source device which is easy to handle and is operative stably. Pumping light is irradiated to a laser medium from a light source for optical pumping. The stimulated laser medium pumps radiation of a set wavelength. This radiation is stimulated to be amplified while reciprocating between resonator mirrors. A multi layer film is inserted in an optical path of the radiation. Feeble light of the radiation from the laser medium is absorbed by the multi-layer to be weaker, and that part of the radiation having intensities above a set intensity is compressed in terms of time to be emitted outside. The emitted radiation has a very short pulse duration.

REFERENCES:
patent: 4984244 (1991-01-01), Yamamoto et al.
Zhang et al., Gallium arsenide: A new material to accomplish passively mode-locked Nd:YAG laser, Applied Physics, vol. 60, No. 4, Jan. 27, 1992, pp. 419-421.
Keller et al., Solid-state low-loss intracavity saturable absorber for Nd:YLF lasers: an antiresonant semiconductor Fabry-Perot saturable absorber, Optics Letters, vol. 17, No. 7, pp. 505.507, Jan. 1992.

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