Novel dispersion compensation method for cross-coupling measurement in PM-PCF based on OCDP |
| |
| Affiliation: | 1. Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, China;2. College of Information Engineering, Shenzhen University, Shenzhen 518060, China;1. Key Laboratory of Science and Technology on high energy laser, China Academy of Engineering Physics, Mianyang 621900, China;2. State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China;1. Department of Physics, Harbin Institute of Technology, Harbin 150001, China;2. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China;1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;2. Department of Physics, Xiamen University, Xiamen 361005, China;3. Hangzhou Dianzi University, Hangzhou 310018, China |
| |
| Abstract: | For polarization maintaining photonic crystal fiber (PM-PCF), the cross-coupling measurement can be severely affected by interferogram broadening, due to the large inter-mode chromatic dispersion. In this paper, a novel dispersion compensation method is proposed to mitigate the influence, including a frequency domain algorithm and investigation of the dispersion coefficient for a phase packet in algorithm. A numerical simulation and measurement of birefringence as a function of wavelength reveal that the dispersion coefficient in PM-PCF is much larger than that in PANDA-PM fiber. After compensation, the accuracy of coupling strength measured can be restored and spatial resolution is improved. Experiments show the compensation provides high accuracy with average relative error less than 0.31% and spatial resolution improved 4.1 times. |
| |
| Keywords: | Polarization maintaining photonic crystal fiber OCDP Inter-mode chromatic dispersion Cross-coupling measurement Compensation algorithm |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
