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1120 nm second-Stokes generation in KTiOAsO4

✍ Scribed by Z.J. Liu; Q.P. Wang; X.Y. Zhang; S.S. Zhang; J. Chang; H. Wang; S.Z. Fan; W.J. Sun; X.T. Tao; S.J. Zhang; H.J. Zhang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
125 KB
Volume
6
Category
Article
ISSN
1612-2011

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✦ Synopsis

The efficient second-Stokes generation at 1120 nm is obtained from a KTiOAsO4 (KTA) crystal. The relative Raman scattering cross sections of KTA with respect to YVO 4 are determined by studying their spontaneous Raman scattering spectra at room temperature. A 30-mm-long KTA crystal is placed inside the cavity of a diode-end-pumped acousto-optically Q-switched Nd:YAG laser. With a pump power of 6.7 W and a pulse repetition rate of 20 kHz, the second-Stokes (1120 nm) power of 0.63 W is obtained, corresponding to a diode-to-second-Stokes conversion efficiency of 9.4%. Total output Raman power, W 0.6 0.5 0.4 0.3 0.2 0.1 0 0.7 0.8 0.

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