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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 5 — Feb. 10, 2010
  • pp: 811–816

Compact diode stack end pumped Nd : YAG amplifier using core doped ceramics

Thomas Denis, Sven Hahn, Sandra Mebben, Ralf Wilhelm, Christian Kolleck, Jörg Neumann, and Dietmar Kracht  »View Author Affiliations


Applied Optics, Vol. 49, Issue 5, pp. 811-816 (2010)
http://dx.doi.org/10.1364/AO.49.000811


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Abstract

We report on a compact Nd : YAG amplifier emitting a maximum pulse energy of 14 mJ . By amplifying a passively Q-switched oscillator ( M 2 < 1.2 ) a good beam quality of M 2 1.7 was achieved. The amplifier is diode pumped by an 8 bar diode stack of 800 W power and a nonimaging optic. This optic homogenizes the pump light and transfers it into a 5 mm diameter core doped rod with a centrally neodymium doped region of 3 mm and a samarium doped YAG cladding. We show that this cladding reduces parasitic effects in the laser rod compared to an undoped YAG cladding. Finally, we compare the compact amplifier with an amplifier, which is mode selectively pumped by a fiber coupled pump diode.

© 2010 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(080.4298) Geometric optics : Nonimaging optics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 12, 2009
Manuscript Accepted: January 8, 2010
Published: February 2, 2010

Citation
Thomas Denis, Sven Hahn, Sandra Mebben, Ralf Wilhelm, Christian Kolleck, Jörg Neumann, and Dietmar Kracht, "Compact diode stack end pumped Nd:YAGamplifier using core doped ceramics," Appl. Opt. 49, 811-816 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-5-811

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