Lidar has been widely used in both military and civil applications. Its received optical signal undergoes considerable loss and disturbance from background noise, which limits its performance especially in bad weather or air conditions. A high-gain and frequency-selective amplifier for weak optical signal based on stimulated Brillouin scattering in single mode fiber is proposed, which is an excellent candidate for the signal enhancement in lidar system. The characteristics of the amplifier were studied numerically and experimentally. In experiment, a 430-nW (peak power) pulsed signal was amplified by 70 dB with a signal-noise ratio of 14 dB, which was in good agreement with theoretical result.
|Title of host publication
|Tenth International Conference on Information Optics and Photonics
|Published - 2018
|10th International Conference on Information Optics and Photonics - Beijing, China
Duration: 8 Jul 2018 → 11 Jul 2018
|Proceedings of SPIE - The International Society for Optical Engineering
|10th International Conference on Information Optics and Photonics
|8/07/18 → 11/07/18
Bibliographical notePublisher Copyright:
© 2018 SPIE.
- Brillouin scattering
- single model fiber
- weak signal