High-speed 3D imaging with a pulsed chaos lidar system

Hsin-Lin Ho^1*, Jun-Da Chen¹, Ching-An Yang¹, Chia-Chi Liu¹, Cheng-Ting Lee¹, Yu-Hsiang Lai¹, Fan-Yi Lin¹

¹Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan

* Presenter:Hsin-Lin Ho, email:a0972305396@gmail.com

We characterize a new chaos lidar system and demonstrate its capability for high-speed 3D imaging. Compared with a homodyned scheme employing single-element avalanche photodetectors (APDs), the proposed scheme utilizes a fiber Bragg grating and quadrant APDs to substantially increase the system throughput, frame rate, and field-of-view (FOV). By quantitatively analyzing the signal-to-noise ratio, peak-to-standard deviation of the sidelobe level (PSL_std), precision, and detection probability, we show that the proposed scheme has better detection performance much suitable for practical applications.

Keywords: Semiconductor laser, Nonlinear optics, Chaos, Fiber Bragg grating, Lidar