Abstract

The influences of intracavity nonlinear losses on the intensity noise of output lasers are theoretically and experimentally investigated with an all-solid-state single-frequency laser with high gain. By means of tuning the temperature of a nonlinear crystal deliberately placed inside the laser resonator, the intracavity nonlinear loss of the laser is controlled. The dependence of the frequency and amplitude of the resonant relaxation oscillation peak on the nonlinear loss is studied in detail for both fundamental-wave (FW) and second-harmonic-wave (SHW). We find that, by controlling the temperature of the nonlinear crystal, the intensity noises of the laser can be transferred between FW and SHW. The theoretical predictions are in good agreement with the experimental measurements. The obtained results can be applied to manipulate and suppress the laser noises.

© 2015 Optical Society of America

Intensity noise suppression of a high-power single-frequency CW laser by controlling the stimulated emission rate

Yongrui Guo, Huadong Lu, Weina Peng, Jing Su, and Kunchi Peng
Opt. Lett. 44(24) 6033-6036 (2019)

Scheme for improving laser stability via feedback control of intracavity nonlinear loss

Pixian Jin, Huadong Lu, Jing Su, and Kunchi Peng
Appl. Opt. 55(13) 3478-3482 (2016)

Single frequency Ti:sapphire laser with continuous frequency-tuning and low intensity noise by means of the additional intracavity nonlinear loss

Huadong Lu, Xuejun Sun, Meihong Wang, Jing Su, and Kunchi Peng
Opt. Express 22(20) 24551-24558 (2014)

Single-frequency CW Ti:sapphire laser with intensity noise manipulation and continuous frequency-tuning

Pixian Jin, Huadong Lu, Yixiao Wei, Jing Su, and Kunchi Peng
Opt. Lett. 42(1) 143-146 (2017)

All-optical frequency and intensity noise suppression of single-frequency fiber laser

Can Li, Shanhui Xu, Xiang Huang, Yu Xiao, Zhouming Feng, Changsheng Yang, Kaijun Zhou, Wei Lin, Jiulin Gan, and Zhongmin Yang
Opt. Lett. 40(9) 1964-1967 (2015)