Acta Optica Sinica, Volume. 39, Issue 6, 0614003(2019)
Highly Efficient Intensity-Modulated 532-nm Laser Based on Second Harmonic Generation with MgO∶PPLN Cascade
A 10-mW 1064-nm dual-frequency laser is designed herein by using a single-frequency laser with a single non-planar ring oscillator and an acousto-optic modulator. The range of the beat frequency is 125-175 MHz. The 1064-nm dual-frequency laser is amplified to a power of 10 W by a fiber optic power amplifier. The 2.26 W intensity-modulated green laser, which corresponds to the maximum frequency-doubling efficiency of 24.5%, is obtained to improve the second harmonic generation efficiency by using two 15-mm-long MgO∶PPLN crystals. The obtained green beat frequencies are 150 MHz and 300 MHz when the frequency difference of the fundamental light is 150 MHz, and they had a 2-min beat frequency stability of 2.7 Hz and 5.3 Hz, respectively.
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Kun Li, Suhui Yang, Xin Wang, Zhuo Li, Jinying Zhang. Highly Efficient Intensity-Modulated 532-nm Laser Based on Second Harmonic Generation with MgO∶PPLN Cascade[J]. Acta Optica Sinica, 2019, 39(6): 0614003
Category: Lasers and Laser Optics
Received: Jan. 8, 2019
Accepted: Mar. 4, 2019
Published Online: Jun. 17, 2019
The Author Email: Yang Suhui (suhuiyang@bit.edu.cn)