Translator Disclaimer
5 November 2018 Relationship between the longitudinal-mode structure and the relative intensity noise properties of the laser
Author Affiliations +
Abstract
The relationship between the longitudinal-mode structure (LMS) of the laser and the relative intensity noise (RIN) properties was investigated in this paper after an all-solid-state continuous-wave (CW) single-frequency 1064 nm laser with output power of 50.3 W was achieved. The LMS of the laser was manipulated by controlling the temperature of the deliberately introduced nonlinear lithium triborate (LBO) crystal in the resonator. When the laser worked with single-longitudinal-mode (SLM) operation, the stable RIN spectrum was observed and measured. Moreover, with the decrease of the nonlinear conversion efficiency (NCE), the frequency and amplitude of the resonant-relaxation oscillation (RRO) peak regularly shifted to the higher frequencies and increased, respectively. However, with further decrease of the NCE, the laser began to work with the multi-longitudinalmode (MLM) or mode-hopping operation and the unstable RIN spectra of the laser were both observed not only at low frequencies but also at high frequencies. Once the NCE was moved away, the MLM or mode-hopping can only enhance the fluctuation of the laser RIN spectrum below the frequency of RRO. The experimental results definitely revealed that the key to achieve a stable high power laser with low intensity noise was to realize single-frequency operation of the laser with free MLM and mode-hopping.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Huadong Lu, Yongrui Guo, Minzhi Xu, Jing Su, and Kunchi Peng "Relationship between the longitudinal-mode structure and the relative intensity noise properties of the laser", Proc. SPIE 10811, High-Power Lasers and Applications IX, 108110N (5 November 2018); https://doi.org/10.1117/12.2502409
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

A highly efficient pulsed Nd YVO4 laser pumped by two...
Proceedings of SPIE (February 01 2007)
Mode locking operation of Yb YAG YAG laser nonlinear...
Proceedings of SPIE (April 25 2007)
Stable CW low noise operation of a diode pumped monolithic...
Proceedings of SPIE (February 19 2007)
High-power cw Ti:sapphire laser
Proceedings of SPIE (October 21 1998)

Back to Top