ZHANG Ailing,YAN Jinmeng,PAN Honggang,HU Guang.A simple fiber length measurement method with improved accuracy using microwave photonic technology[J].Optoelectronics Letters,2021,17(10):626-629 A simple fiber length measurement method with improved accuracy using microwave photonic technology Author Name Affiliation ZHANG Ailing  Engineering Research Center of Communication Devices and Technology, Ministry of Education, Tianjin Key Labor-atory of Film Electronic and Communication Devices, School of Electrical and Electronic Engineering, Tianjin Uni-versity of Technology, Tianjin 300384, China  YAN Jinmeng  Engineering Research Center of Communication Devices and Technology, Ministry of Education, Tianjin Key Labor-atory of Film Electronic and Communication Devices, School of Electrical and Electronic Engineering, Tianjin Uni-versity of Technology, Tianjin 300384, China  PAN Honggang  Engineering Research Center of Communication Devices and Technology, Ministry of Education, Tianjin Key Labor-atory of Film Electronic and Communication Devices, School of Electrical and Electronic Engineering, Tianjin Uni-versity of Technology, Tianjin 300384, China  HU Guang  Engineering Research Center of Communication Devices and Technology, Ministry of Education, Tianjin Key Labor-atory of Film Electronic and Communication Devices, School of Electrical and Electronic Engineering, Tianjin Uni-versity of Technology, Tianjin 300384, China  Abstract:       A simple method to measure the length of optical fiber is proposed using microwave photonic technology. The length of fiber is measured according to the free spectral range (FSR) of the microwave photonic system. The measurement accuracy is only related to the accuracy of FSR measurement. The accuracy is further improved by introducing a reference fiber, and the method was verified in the experiment with 2—10 m single-mode fiber. Hits: 559 Download times: 37 View Full Text    Download reader