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Proceedings Paper

Cryogenically cooled Ti:sapphire amplifiers
Author(s): Jean-Marc Heritier; Steve Fournier; G. J. Germann; B. Resan; R. Viselga; A. Fry
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Paper Abstract

Cryogenic cooling of Ti:Sapphire is a well known technique for improving its thermal performance. In particular the improvement in thermal conductivity, temperature dependence of the index of refraction and thermal expansion around 77 K dramatically reduces the thermal lensing. This allows a significant increase in the possible pump power, while keeping a very good beam quality over a wider range of operation. As an example we demonstrate a single-stage regenerative amplifier that is capable of delivering compressed output powers of 7.5 W and 11.9 W at 1 and 5 kHz, respectively, as well as a multi-pass amplifier delivering 13.2 W at 1 kHz.

Paper Details

Date Published: 20 February 2007
PDF: 8 pages
Proc. SPIE 6451, Solid State Lasers XVI: Technology and Devices, 64510V (20 February 2007); doi: 10.1117/12.707693
Show Author Affiliations
Jean-Marc Heritier, Coherent, Inc. (United States)
Steve Fournier, Coherent, Inc. (United States)
G. J. Germann, Coherent, Inc. (United States)
B. Resan, Coherent, Inc. (United States)
R. Viselga, Coherent, Inc. (United States)
A. Fry, Coherent, Inc. (United States)

Published in SPIE Proceedings Vol. 6451:
Solid State Lasers XVI: Technology and Devices
Hanna J. Hoffman; Ramesh K. Shori; Norman Hodgson, Editor(s)

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