Mid-IR difference-frequency generation in OP-GaAs inside the cavity of a narrow-band nanosecond PPLN optical parametric oscillator

Li Wang; Weidong Chen; Yongguang Zhao; Peter Schunemann; André Schirrmacher; Edlef Büttner; Andrey A. Boyko; Ning Ye; Ge Zhang; Valentin Petrov

doi:10.1117/12.2578923

5 March 2021 Mid-IR difference-frequency generation in OP-GaAs inside the cavity of a narrow-band nanosecond PPLN optical parametric oscillator

Li Wang, Weidong Chen, Yongguang Zhao, Peter Schunemann, André Schirrmacher, Edlef Büttner, Andrey A. Boyko, Ning Ye, Ge Zhang, Valentin Petrov

Author Affiliations +

Proceedings Volume 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX; 1167011 (2021) https://doi.org/10.1117/12.2578923
Event: SPIE LASE, 2021, Online Only

Abstract

We report on efficient mid-IR difference-frequency generation (DFG) at ~8 μm in orientation-patterned GaAs (OPGaAs), by mixing the signal and idler fields inside a nanosecond, singly-resonant, periodically-poled MgO-doped LiNbO₃ optical parametric oscillator (OPO). The temperature and spectral acceptance bandwidths as well as the DFG output performance are compared for two OP-GaAs samples with different lengths. Temperature tuning of the DFG is studied by implementing a transversely chirped Volume Bragg Grating (VBG) as one of the OPO cavity mirrors for the signal wave. The maximum DFG average power amounts to 215 mW at 8.15 μm for a pulse repetition rate of 35 kHz. The corresponding overall optical conversion efficiency from 1 to 8 μm is ~1.1%.

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Li Wang, Weidong Chen, Yongguang Zhao, Peter Schunemann, André Schirrmacher, Edlef Büttner, Andrey A. Boyko, Ning Ye, Ge Zhang, and Valentin Petrov "Mid-IR difference-frequency generation in OP-GaAs inside the cavity of a narrow-band nanosecond PPLN optical parametric oscillator", Proc. SPIE 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX, 1167011 (5 March 2021); https://doi.org/10.1117/12.2578923

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