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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 25 — Sep. 1, 2006
  • pp: 6607–6615

End-pumped 1.5 μm monoblock laser for broad temperature operation

Bradley W. Schilling, Stephen R. Chinn, A. D. Hays, Lew Goldberg, and C. Ward Trussell  »View Author Affiliations


Applied Optics, Vol. 45, Issue 25, pp. 6607-6615 (2006)
http://dx.doi.org/10.1364/AO.45.006607


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Abstract

We describe a next-generation monoblock laser capable of a greater than 10   mJ , 1.5 μ m output at 10   pulses / s   ( pps ) over broad ambient temperature extremes with no active temperature control. The transmitter design is based on a Nd:YAG laser with a Cr 4+ passive Q switch and intracavity potassium titanyl phosphate optical parametric oscillator. To achieve the repetition rate and efficiency goals of this effort, but still have wide temperature capability, the Nd : YAG slab is end pumped with a 12-bar stack of 100   W (each) diode bars. Different techniques for focusing the pump radiation into the 4.25   mm × 4 .25   mm end of the slab are compared, including a lensed design, a reflective concentrator, and a lens duct. A wide temperature operation (−20 °C to 50 °C) for each end-pumped configuration is demonstrated.

© 2006 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.5560) Lasers and laser optics : Pumping

History
Original Manuscript: December 19, 2005
Revised Manuscript: March 28, 2006
Manuscript Accepted: March 29, 2006

Citation
Bradley W. Schilling, Stephen R. Chinn, A. D. Hays, Lew Goldberg, and C. Ward Trussell, "End-pumped 1.5 μm monoblock laser for broad temperature operation," Appl. Opt. 45, 6607-6615 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-25-6607

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