The SRI method based on the optical frequency comb on absolute distance measurement

Yan Xu; Weihu Zhou; Deming Liu; Lei Ding

doi:10.1117/12.905019

30 November 2011 The SRI method based on the optical frequency comb on absolute distance measurement

Yan Xu, Weihu Zhou, Deming Liu, Lei Ding

Proceedings Volume 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 82011L (2011) https://doi.org/10.1117/12.905019
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

A novel absolute distance measurement method based on the optical frequency comb of the Ti:sapphire femtosecond laser was presented. In the spectrally-resolved interferometry (SRI), all modes interference signals of the optical frequency comb was obtained by the femtosecond light pulses traveling along different optical path between the reference and measurement arms. The interference intensity in the frequency domain was inverse Fourier-transformed into the time domain, and the phase peak was isolated by use of an appropriate Hamming window, then the phase difference which was caused by the distance was resolved in the frequency domain. The simulation results indicated that this algorithm could satisfy the demand of the small scale profile measurement with the non-ambiguity range of millimeter level, and the resolution of nanometer level. Furthermore, combined with the conventional phase ranging method, the max measurement distance of our method can be extended to several dozen meters.

Citation Download Citation

Yan Xu, Weihu Zhou, Deming Liu, and Lei Ding "The SRI method based on the optical frequency comb on absolute distance measurement", Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82011L (30 November 2011); https://doi.org/10.1117/12.905019

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