空间科学学报2025，Vol.45Issue(1)：179-188,10.DOI:10.11728/cjss2025.01.2024-0020
激光频率波动对空间引力波探测激光干涉测量的影响分析
Analysis of the Influence and Importance of Laser Frequency Fluctuation on Laser Interference Simulation System for Space Gravitational Wave Detection
刘宇 1张玉珠 2彭晓东 3赵梦园 4杨震 2唐文林 2强丽娥2
作者信息
- 1. 中国科学院大学杭州高等研究院基础物理与数学科学学院 杭州 310024||中国科学院国家空间科学中心 北京 101499||中国科学院大学 北京 100049
- 2. 中国科学院国家空间科学中心 北京 101499
- 3. 中国科学院大学杭州高等研究院基础物理与数学科学学院 杭州 310024||中国科学院国家空间科学中心 北京 101499||引力波宇宙太极实验室 杭州 310024
- 4. 中国科学院国家空间科学中心 北京 101499||西安财经大学信息学院 西安 710100
- 折叠
摘要
Abstract
The laser interferometric measurement system for space gravitational wave detection is of great significance for detection tasks,the noise of the interferometric measurement system is the key fac-tor determining the success or failure of the task.Laser frequency noise is one of the most important noises.Therefore,it is necessary to analyze the impact and importance of laser frequency fluctuations on measurement results.Due to the difficulty in simulating the environment in space,analyzing based on simulation systems is an ideal approach.Based on the simulation system of space gravitational wave de-tection laser interferometry measurement,the measurement errors caused by laser frequency fluctua-tions of free running laser on the measurement results of scientific interferometer,reference interferome-ter,and TM interferometer models was analyzed.Then,sensitivity analysis was conducted using the derivative method and Sobol method with interference laser wavelength as input parameter.The influ-ence and importance of laser frequency fluctuations of reference beam and measurement beam on the output of three interferometer models were analyzed.The results indicate that:laser frequency fluctua-tions during free running stages,which will cause changes in the measurement results of the interferome-ter,these changes are far greater than the picometers.Additionally,under the experimental conditions of this paper,the importance of measurement beam frequency fluctuation on the outputs of the three inter-ferometers is 100%,56%,and 54%respectively.The importance of reference beam frequency fluctuation on the outputs of the three interferometers is 0%,44%,and 46%respectively.关键词
引力波探测/空间激光干涉/激光干涉仿真/激光频率噪声/灵敏度分析Key words
Gravitational wave detection/Space laser interference/Laser interference simulation/Laser frequency noise/Sensitivity analysis分类
天文与地球科学引用本文复制引用
刘宇,张玉珠,彭晓东,赵梦园,杨震,唐文林,强丽娥..激光频率波动对空间引力波探测激光干涉测量的影响分析[J].空间科学学报,2025,45(1):179-188,10.
