OPTICAL PARAMETRIC OSCILLATORS

Difference-frequency mixing of output waves from a periodically poled lithium niobate optical parametric oscillator in a GaSe crystal

[+] Author Affiliations
S. Haidar

Tohoku University, Research Institute of Electrical Communication, 2-1-1 Katahira, Aoba-ku, Sendai?980?8577, Japan

Y. K. Hsu, C. S. Chang, S. C. Wang

National Chiao Tung University, Institute of Electro-optical Engineering, 1001 Ta Hsueh Road, Hsingdu, Taiwan?300

Hiromasa Ito

Tohoku University, Research Institute of Electrical Communication, 2-1-1 Katahira, Aoba-ku, Sendai?980?8577, Japan

RIKEN, Photodynamics Research Center, 519-1399 Aoba, Aramaki, Aoba-ku, Sendai?980-0868, Japan

Opt. Eng. 41(8), 1932-1935 (Aug 01, 2002). doi:10.1117/1.1488606
History: Received Oct. 3, 2001; Revised Feb. 4, 2002; Accepted Feb. 4, 2002; Online August 01, 2002
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We report on an optical parametric oscillator (OPO) based on periodically poled lithium niobate (PPLN) pumped by a Nd:YAG laser, and on extending its tuning range by difference-frequency mixing of OPO output waves in GaSe crystal. Maximum combined signal and idler pulse energy of 2.7 mJ and slope efficiency of 25% have been achieved. The tuning range is 1.71 to 1.98 μm for the signal wave and 2.81 to 2.30 μm for the idler wave, using a single set of mirrors. As an application of this PPLN OPO, the signal and the idler waves are difference-frequency-mixed in a GaSe crystal to produce tunable mid-IR from 4.35 to 14.25 μm. The efficiency of the mixing has been analyzed, considering the experimental results. © 2002 Society of Photo-Optical Instrumentation Engineers.

© 2002 Society of Photo-Optical Instrumentation Engineers

Citation

S. Haidar ; Y. K. Hsu ; C. S. Chang ; S. C. Wang and Hiromasa Ito
"Difference-frequency mixing of output waves from a periodically poled lithium niobate optical parametric oscillator in a GaSe crystal", Opt. Eng. 41(8), 1932-1935 (Aug 01, 2002). ; http://dx.doi.org/10.1117/1.1488606


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