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

Qian Zhou; Jie Qin; Weilin Xie; Yan Xu; Yi Dong; Weisheng Hu

doi:10.1117/12.2192824

5 August 2015 The laser phase measurement by phase-smooth unwrapping algorithm and its application in phase error compensation of OFMCW

Qian Zhou, Jie Qin, Weilin Xie, Yan Xu, Yi Dong, Weisheng Hu

Author Affiliations +

Proceedings Volume 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing; 961909 (2015) https://doi.org/10.1117/12.2192824
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

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.

Citation Download Citation

Qian Zhou, Jie Qin, Weilin Xie, Yan Xu, Yi Dong, and Weisheng Hu "The laser phase measurement by phase-smooth unwrapping algorithm and its application in phase error compensation of OFMCW", Proc. SPIE 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 961909 (5 August 2015); https://doi.org/10.1117/12.2192824

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available