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Proceedings Paper

The laser phase measurement by phase-smooth unwrapping algorithm and its application in phase error compensation of OFMCW
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Paper Abstract

Phase error compensation is necessity for high resolution optical frequency modulated continuous wave (OFMCW). In the phase error compensation of OFMCW, the precise measurement of laser source phase is the most significant. In this paper, we proposed a phase-smooth unwrapping algorithm to settle the issue of phase leap over 2π, thus could restore precisely the real phase of laser source, then could compensated the phase error in OFMCW. With that method, OFMCW's resolution could be promoted to 0.5 mm at over 200 m.

Paper Details

Date Published: 5 August 2015
PDF: 5 pages
Proc. SPIE 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 961909 (5 August 2015); doi: 10.1117/12.2192824
Show Author Affiliations
Qian Zhou, Shanghai Jiao Tong Univ. (China)
Jie Qin, Shanghai Jiao Tong Univ. (China)
Weilin Xie, Shanghai Jiao Tong Univ. (China)
Yan Xu, Shanghai Jiao Tong Univ. (China)
Yi Dong, Shanghai Jiao Tong Univ. (China)
Weisheng Hu, Shanghai Jiao Tong Univ. (China)


Published in SPIE Proceedings Vol. 9619:
2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing
Yi Dong; Chao Lu; Jian Wu; Zhaohui Li, Editor(s)

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