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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 24 — Aug. 20, 1997
  • pp: 5872–5875

Highly efficient diode-stack, end-pumped Nd:YAG slab laser with symmetrized beam quality

Yan Liao, Keming Du, Stephan Falter, Jian Zhang, Michael Quade, Peter Loosen, and Reinhart Poprawe  »View Author Affiliations


Applied Optics, Vol. 36, Issue 24, pp. 5872-5875 (1997)
http://dx.doi.org/10.1364/AO.36.005872


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Abstract

An efficient high-power cw Nd:YAG slab laser, partially end pumped by diode-laser stacks, and a novel beam-shaping technique are reported. The optical efficiency amounted to 44%, and the slope efficiency amounted to 55%. Introducing an intracavity Brewster plate to polarize the laser beam, we obtained an optical efficiency of 35% and a slope efficiency of 41%. The output beam was rectangular and the beam quality asymmetric in two orthogonal directions. To equalize the beam quality, we introduced a step-mirror beam-shaping technique. The beam-shaping technique and the results obtained are discussed.

© 1997 Optical Society of America

History
Original Manuscript: December 10, 1996
Revised Manuscript: March 28, 1997
Published: August 20, 1997

Citation
Yan Liao, Keming Du, Stephan Falter, Jian Zhang, Michael Quade, Peter Loosen, and Reinhart Poprawe, "Highly efficient diode-stack, end-pumped Nd:YAG slab laser with symmetrized beam quality," Appl. Opt. 36, 5872-5875 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-24-5872

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