Fei Gao, Fengjia Gao, Rui Zhang, Chun Hou, Fan Yang, Li Wang, Wenhui Xin, Shichun Li, Dengxin Hua. Field-Widening Technique for Mach-Zehnder Interferometer in Multi-Longitudinal-Mode High-Spectral-Resolution Lidar[J]. Acta Optica Sinica, 2023, 43(6): 0612007
- Acta Optica Sinica
- Vol. 43, Issue 6, 0612007 (2023)
Fig. 1. Diagram of multi-longitudinal-mode high spectral resolution lidar system based on Mach-Zehnder interferometer
Fig. 2. Relationship between effective transmittance of Mie signal and OPD in aerosol channel. (a) Only the matching of OPD and the double length of cavity is considered; (b) only the matching of OPD and laser wavelength is considered
Fig. 3. Diagram of lightpath of MZI (divergence angle is not 0°)
Fig. 4. Change curve of Taa with divergence angle
Fig. 5. Diagram of lightpath of field-widening of large optical path difference MZI
Fig. 6. Additional OPD varies with divergence angle before and after the field-widening. (a) Before field-widening; (b) after field-widening
Fig. 7. Interference patterns of MZI at different divergence angles. (a) 0 mrad; (b) 1.0 mrad; (c) 2.0 mrad; (d) 3.0 mrad; (e) 4.0 mrad;(f) 5.0 mrad
Fig. 8. Change curve of interference intensity of MZI with
Fig. 9. Taa varies with divergence angle before and after field-widening
|
Table 1. Basic parameters of alternative glass
|
Table 2. Zemax simulation parameters of lightpath of field-widening of large optical path difference MZI
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20