24 October 2017 Design and engineering development of single-mode fiber coupling system for Laser Doppler Velocity Radar
Author Affiliations +
Proceedings Volume 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications; 104623V (2017) https://doi.org/10.1117/12.2285287
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Coupling of scattering light in space into a single-mode fiber is a key technology in the process of developing the Laser Doppler Velocity Radar. In order to make sure that the radar can get the longest detect distance, we have discussed the method of determining the key parameters of the receiver/transmitter common-path optical system based on the singlemode fiber coupling, from the points of laser radar detect distance equation, principle of single-mode fiber coupling efficiency reach maximum, and considerations of laser transmitter. In the engineering development process of an laser Doppler velocity radar, we have designed the optical system which fulfills the requirement of detect distance bigger than 3Km, then given out simulation results of single-mode fiber coupling efficiency versus lens spherical aberration, fiber defocus and fiber tilt. The tolerance analysis result indicates that the coupling efficiency will bigger than 52% under the usual levels of optical manufacture and assembly. At last we designed specialized equipment for testing the single-mode fiber coupling efficiency of the system we developed, the results showed that after mechanical vibration and thermal experiments, the single-mode coupling efficiency is 55.9%, and in the operating temperature range of 20±3°C, the lowest coupling efficiency is 45%, which is still bigger than 35% as the system required to make sure the detect distance bigger than 3Km.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yaowu Kuang, Yaowu Kuang, Zhiping He, Zhiping He, Weiming Xu, Weiming Xu, Rong Shu, Rong Shu, } "Design and engineering development of single-mode fiber coupling system for Laser Doppler Velocity Radar", Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 104623V (24 October 2017); doi: 10.1117/12.2285287; https://doi.org/10.1117/12.2285287


3 kW single stage all fiber Yb doped single mode...
Proceedings of SPIE (February 21 2017)
200 km long fiber ring laser for multiplexing fiber Bragg...
Proceedings of SPIE (November 06 2012)
High Performance Laser Package Design
Proceedings of SPIE (December 31 1986)
High-performance ultrafast fiber laser systems
Proceedings of SPIE (June 06 2004)
Innovations in high power fiber laser applications
Proceedings of SPIE (February 15 2012)
Fibre laser based ultra low phase noise LO generation for...
Proceedings of SPIE (November 06 2007)

Back to Top