Abstract
We report a narrow pulse width optical parametric oscillator based on periodically poled MgO:LiNbO3 (PPMgLN) with a high repetition rate under quasi-phase matched conditions. When the maximum pumping power of the 1,064-nm laser was 14.57 W, the acousto-optical (A-O) Q-switch repetition rate was 100 kHz, and the PPMgLN crystal grating period was 29.5 μm. A 1,474-nm signal light output power of 4.21 W and a 3,828 nm idler light output power of 1.547 W were obtained, corresponding to a pulse width of 9.52 ns and 9.65 ns, respectively. The overall optical–optical conversion efficiency was 39.5%. Additionally, by changing the temperature from 25°C to 150°C, a tunable signal wavelength of 1,474–1,499 nm and idler wavelength at 3,676–3,828 nm of the output laser were achieved.
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Zi-Jian, W., Yong-Ji, Y., Rui-Zhi, Z. et al. A 100 kHz Narrow-Pulse-Width Mid-Infrared Optical Parametric Oscillator Based on PPMgLN Crystal. J Russ Laser Res 37, 97–101 (2016). https://doi.org/10.1007/s10946-016-9549-9
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DOI: https://doi.org/10.1007/s10946-016-9549-9