Acta Optica Sinica, Volume. 32, Issue 6, 614003(2012)
Investigation on Eye-Safe Ring-Cavity KTP Optical Parametric Oscillator with Seed Injection
An eye-safe laser source at 1.57 μm is demonstrated by using a non-critically phase-matched (θ=90°, φ=0°) ring cavity optical parametric oscillator pumped by an electro-optic Q-switched Nd:YAG laser. Theoretical and experimental results show that reducing the cavity length and injection of seed laser can effectively reduce the threshold, and increase the output energy. When the Nd:YAG laser energy is 88 mJ and the injected signal power changes from 0 to 6 mW, the output energy is enhanced from 8.8 to 14 mJ. When the pump energy is 167.7 mJ and the injected signal power is 6 mW, the maximum output energy of 46 mJ is obtained, corresponding to the peak power of 7.44 MW.
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Long Qiqiang, Zhong Kai, Hong Guanglie. Investigation on Eye-Safe Ring-Cavity KTP Optical Parametric Oscillator with Seed Injection[J]. Acta Optica Sinica, 2012, 32(6): 614003
Category: Lasers and Laser Optics
Received: Dec. 13, 2011
Accepted: --
Published Online: Apr. 16, 2012
The Author Email: Qiqiang Long (passuid@gmail.com)