1 August 2002 Difference frequency mixing of periodically poled lithium niobate optical parametric oscillator output waves in GaSe crystal
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Abstract
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 ?m for the signal wave and 2.81 to 2.30 ?m 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 ?m. The efficiency of the mixing has been analyzed, considering the experimental results.
© (2002) Society of Photo-Optical Instrumentation Engineers (SPIE)
S. Haidar, S. Haidar, Y. K. Hsu, Y. K. Hsu, Chen Shiung Chang, Chen Shiung Chang, S. C. Wang, S. C. Wang, Hiromasa Ito, Hiromasa Ito, } "Difference frequency mixing of periodically poled lithium niobate optical parametric oscillator output waves in GaSe crystal," Optical Engineering 41(8), (1 August 2002). https://doi.org/10.1117/1.1488606 . Submission:
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