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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 29, Iss. 9 — Mar. 20, 1990
  • pp: 1277–1280

Negative-branch unstable resonator with a phase unifying output coupler for high power Nd:YAG lasers

Koji Yasui, Shigenori Yagi, and Masaaki Tanaka  »View Author Affiliations


Applied Optics, Vol. 29, Issue 9, pp. 1277-1280 (1990)
http://dx.doi.org/10.1364/AO.29.001277


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Abstract

Large symmetrical near-diffraction-limited beams 6 mm in diameter with a divergence angle of 1.2 mrad have been extracted from a 0.6% doped Nd:YAG rod pumped by a Kr-arc lamp using a negative-branch unstable resonator with a phase-unifying output coupler. The slope efficiency was 2.6%, the maximum peak laser power was 300 W and the maximum average laser power was 23 W. The misalignment angle of the output coupler to decrease the laser powers by 20% was 2.75 mrad.

© 1990 Optical Society of America

History
Original Manuscript: August 7, 1989
Published: March 20, 1990

Citation
Koji Yasui, Shigenori Yagi, and Masaaki Tanaka, "Negative-branch unstable resonator with a phase unifying output coupler for high power Nd:YAG lasers," Appl. Opt. 29, 1277-1280 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-9-1277

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