Abstract
A new frequency domain measurement method for a fiber-loop ring-down system is proposed in this Letter. Compared to traditional time domain measurement, this method uses a microwave modulated continuous wave (CW) laser as a light source, making full use of the duty cycle to achieve enhanced measurement efficiency. By measuring the amplitude modulation over a frequency span, this technique can be used to determine the ring-down time in the frequency domain, which will then be used to calculate the loss in the ring.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Xiaozhong Tian, Jingzhan Shi, Yiping Wang, Yun She, and Le Li
Opt. Express 30(6) 10110-10118 (2022)
Fei Ye, Bing Qi, and Li Qian
Opt. Lett. 36(11) 2080-2082 (2011)
Dengjian Zhu, Fangzheng Zhang, Pei Zhou, and Shilong Pan
Opt. Lett. 40(7) 1326-1329 (2015)