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Proceedings Paper

A novel high-resolution chaotic lidar with optical injection to chaotic laser diode
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Paper Abstract

A novel chaotic lidar with high resolution is proposed and studied theoretically. In chaotic lidar system, the chaotic laser emitted from chaotic laser diode is split into two beams: the probe and the reference light. The ranging is achieved by correlating the reference waveform with the delayed probe waveform backscattered from the target. In chaotic lidar systems presented previously, the chaotic signal source is laser diode with optical feedback or with optical injection by another one. The ranging resolution is limited by the bandwidth of chaotic laser which determined by the configuration of chaotic signal source. We proposed a novel chaotic lidar which ranging resolution is enhanced significantly by external optical injected chaotic laser diode. With the bandwidth-enhanced chaotic laser, the range resolution of the chaotic lidar system with optical injection is roughly two times compared with that of without optical injection. The resolution increases with injection strength increasing in a certain frequency detuning range.

Paper Details

Date Published: 6 February 2008
PDF: 6 pages
Proc. SPIE 6824, Semiconductor Lasers and Applications III, 68241I (6 February 2008); doi: 10.1117/12.757320
Show Author Affiliations
Yun-cai Wang, Taiyuan Univ. of Technology (China)
An-bang Wang, Taiyuan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6824:
Semiconductor Lasers and Applications III
Lianghui Chen; Hiroyuki Suzuki; Paul T. Rudy; Ninghua Zhu, Editor(s)

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