Analysis and suppression of thermal effect of an ultra-stable laser interferometer for space-based gravitational waves detection

• 作者: Guanfang Wang Zhu Li Jialing Huang Huizong Duan Xiangqing Huang Hongfan Liu Qi Liu Shanqing Yang Liangcheng Tu Hsien-Chi Yeh
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Instrumentation, Measurement, and Optical Sensing
• 页码范围: 43-48
• 页数: 6页
• 语种: 英文
• DOI: 10.3788/COL202220.011203

摘要

In this paper,we present a suppression method for the thermal drift of an ultra-stable laser interferometer.The detailed analysis on the Michelson interferometer indicates that the change in optical path length induced by temperature variation can be effectively reduced by choosing proper thickness and/or incident angle of a compensator.Taking the optical bench of the Laser Interferometer Space Antenna Pathfinder as an example,we analyze the optical bench model with a compen-sator and show that the temperature coefficient of this laser interferometer can be reduced down to 1 pm/K with an incident angle of 0.267828 rad.The method presented in this paper can be used in the design of ultra-stable laser inter-ferometers,especially for space-based gravitational waves detection.