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Proceedings Paper

Efficient eye-safe intracavity KTP optical parametric oscillator
Author(s): Eugene V. Raevsky; Vladimir L. Pavlovitch; Vladislav A. Konovalov
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Paper Abstract

This paper describes the development and performance of an optical parametric oscillator based on KTP crystal and pumped by a flashlamp-pumped Q-switched Nd:YAG laser at 1.064 micrometers . The effect of an optical resonator configuration on OPO performance has been investigated experimentally. A comparison between plane-parallel, stable and unstable resonators in both energy conversion and output beam divergence was also performed and the results are discussed. In summary, we have demonstrated a compact low threshold source for the near IR in a configuration of an intracavity optical parametric oscillator based on the noncritically phase-matched KTP crystal placed inside the resonator of a multi-transverse-mode Nd:YAG laser. The 1.57 micrometers output energy of 40 mJ was achieved with a stable, short cavity KTP OPO. The overall efficiency of 0.55 percent was obtained from operating approximately 2 times above oscillation threshold. The dependence of output pulse energy on flashlamp input energy was not changed within the range of 5-50 Hz.

Paper Details

Date Published: 13 March 2002
PDF: 7 pages
Proc. SPIE 4630, Solid State Lasers XI, (13 March 2002); doi: 10.1117/12.458993
Show Author Affiliations
Eugene V. Raevsky, Polyus Research and Development Institute (Russia)
Vladimir L. Pavlovitch, Polyus Research and Development Institute (Russia)
Vladislav A. Konovalov, Polyus Research and Development Institute (Russia)

Published in SPIE Proceedings Vol. 4630:
Solid State Lasers XI
Richard Scheps, Editor(s)

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