Small-scale high-repetition-rate passively Q-switched intracavity OPO at 1.57 μm |
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| Authors: | J G Miao R X Gao and Y Z Pan |
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| Institution: | (1) Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, P.R. China;(2) Graduate School of Chinese Academy of Sciences, Beijing, 100039, P.R. China |
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| Abstract: | A compact small-scale intracavity optical parametric oscillator (IOPO) at 1.57 μm, driven by a diode pumped Nd:YVO4/Cr:YAG passively Q-switched laser, is experimentally presented. By optimizing the mode matching, low threshold (0.66 W) and
high repetition rate (21 kHz) operation of the IOPO has been investigated. At the incident diode pump power of 1.56 W, the
miniature (56 mm long) IOPO produces a signal average output power up to 86 mW. Efficient parametric conversion leads to short
duration (1.8 ns) pulses and high peak power output (2.3 kW) at 1.57 μm. Moreover, near diffraction limited and Gaussian type
signal beam profile is also observed. |
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