中国激光, 2021, 48 (3): 0301002, 网络出版: 2021-02-02
单频激光宽频段频率和强度噪声测量技术 
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Measurement Technique for Broadband Frequency and Intensity Noise of Single-Frequency Laser
图 & 表
图 1. 频率噪声测量系统示意图。(a) 基于迈克耳孙光纤干涉仪的相关延时自外差测量;(b) 外差拍频测量
Fig. 1. Schematic diagrams of frequency noise measurement system. (a) Correlation delay self-heterodyne measurement based on fiber-type Michelson interferometer; (b) heterodyne beat-frequency measurement
图 2. 基于相关延时自外差法测得的频率噪声谱,其中菱形点为厂家提供的数据
Fig. 2. Frequency noise spectrum measured with correlation delay self-heterodyne method. Diamond points show data provided by supplier
图 3. 由光外差拍频法测得的低频段频率噪声谱
Fig. 3. Frequency noise spectra measured with optical heterodyne beat-frequency method
图 4. 1mHz~1MHz频率范围内的频率噪声谱
Fig. 4. Measured frequency noise spectrum in frequency range of 1mHz--1MHz
图 5. 相对强度噪声谱。(a)基于ESA测得的RIN谱,其中圆点为厂家提供的数据;(b)基于FFT分析仪与DMM测得的RIN谱
Fig. 5. RIN spectra. (a) Measured RIN spectrum with ESA. Dots show data provided by supplier; (b) measured RIN spectra with FFT analyser and DMM
张骥, 魏珊珊, 刘昊炜, 刘元煌, 姚波, 毛庆和. 单频激光宽频段频率和强度噪声测量技术[J]. 中国激光, 2021, 48(3): 0301002. Ji Zhang, Shanshan Wei, Haowei Liu, Yuanhuang Liu, Bo Yao, Qinghe Mao. Measurement Technique for Broadband Frequency and Intensity Noise of Single-Frequency Laser[J]. Chinese Journal of Lasers, 2021, 48(3): 0301002.
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