摘要
对飞秒激光器时间抖动的准确测量是推动其高精度应用的重要前提。为实现时间抖动的高精度、无参考测量,设计并搭建了一套基于光纤延迟线的测量系统。基于非对称迈克尔逊干涉仪的结构,在其中一臂引入一段长光纤延迟线鉴别时间误差,提高时间抖动测量精度。测量了一台实验室自制的重复频率为82 MHz的锁模光纤激光器的时间抖动功率谱,其在100 Hz~10 kHz的积分范围内RMS时间抖动为10.1 fs。
Accurate measurement of the timing jitter of femtosecond laser is an important prerequisite to promote its high precision application.In order to achieve high-precision and no-reference measurement of timing jitter,a measurement system based on fiber delay line was designed and built.Based on the structure of asymmetric Michelson interferometer,a long fiber delay line is added into one arm to identify the time error and improve the measurement accuracy of timing jitter.The timing jitter power spectrum of a lab-made mode-locked fiber laser with a repetition rate of 82 MHz was measured,and the RMS timing jitter was 10.1 fs in the inte⁃grated range of 100 Hz to 10 kHz.
作者
余泓漪
吴言
田昊晨
宋有建
胡明列
YU Hongyi;WU Yan;TIAN Haochen;SONG Youjian;HU Minglie(Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China)
出处
《计测技术》
2022年第5期103-107,共5页
Metrology & Measurement Technology
基金
广东省重点领域研发计划项目(2018B090944001)。
