Share Email Print

Proceedings Paper

High Average Power Nd:YAG Slab Laser
Author(s): Takeshi Kasai; Yoshihiko Sindo; Keiji Haga
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A slab geometry Nd:YAG laser with a zigzag optical path is described. The dimensions of the Nd:YAG slab are 5.6 x 18.4 x 153.9 mm, and Nei' ion concentration is 1.1 at.%. Two krypton flashlamps, one located on each side of the YAG slab, are used for pumping. The conditions for normal pulsed operation were as follows: the repetition rate was from 5 to 27 pps, and the pulse durations were 4 and 9.9 ms. With the above conditions, a maximum average output power of 500 W was obtained with an efficiency of 2 %, the slope efficiency being 2.4 %. The beam divergence was estimated to be 10x25 mrad. The stability of the laser output power was about ±1.5 %. Another oscillator that includes intra-cavity cylindrical lenses, was also designed. Using this resonator configuration reduced the beam divergence to about 7.6 x8.2 mrad. The preliminary laser processing experiment was attemped using this laser oscillator.

Paper Details

Date Published: 6 July 1989
PDF: 5 pages
Proc. SPIE 1040, High Power and Solid State Lasers II, (6 July 1989); doi: 10.1117/12.951164
Show Author Affiliations
Takeshi Kasai, Fuji Electric Corporate Research and Development, Ltd. (Japan)
Yoshihiko Sindo, Fuji Electric Corporate Research and Development, Ltd. (Japan)
Keiji Haga, Fuji Electric Corporate Research and Development, Ltd. (Japan)

Published in SPIE Proceedings Vol. 1040:
High Power and Solid State Lasers II
George Dube, Editor(s)

© SPIE. Terms of Use
Back to Top