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Proceedings Paper

Two laser ranging instruments using chaotic light
Author(s): Tong Zhao; An-Bang Wang; Yun-Cai Wang
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Paper Abstract

We design two laser ranging instruments (chaotic lidar and chaotic optical time domain reflectometer) using broadband chaotic light for free space and optical fiber. The laser diode with external optical feedback cavity is utilized to realize the chaotic light, and the chaotic light is divided into reference light and probe light by a splitter or an optical coupler. The target position can be achieved from the main peak of the cross-correlation trace, computed by the correlation function between the reference and probe light, and the spatial resolution is independent of the length which is determined by the full width at half maximum of correlation curve. Our instruments can range at least 130 m with 18 cm resolution in free space and 68-km with 6cm resolution in optical fiber.

Paper Details

Date Published: 30 November 2011
PDF: 6 pages
Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82010C (30 November 2011); doi: 10.1117/12.904661
Show Author Affiliations
Tong Zhao, Taiyuan Univ. of Technology (China)
An-Bang Wang, Taiyuan Univ. of Technology (China)
Yun-Cai Wang, Taiyuan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8201:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Xinyong Dong; Xiaoyi Bao; Perry Ping Shum; Tiegen Liu, Editor(s)

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