Absolute distance measurement using frequency-comb-referenced four-wavelength interferometry

Guochao Wang; Yoon-Soo Jang; Hyunjay Kang; Byung Jae Chun; Young-Jin Kim; Seung-Woo Kim

doi:10.1117/12.2182140

6 March 2015 Absolute distance measurement using frequency-comb-referenced four-wavelength interferometry

Guochao Wang, Yoon-Soo Jang, Hyunjay Kang, Byung Jae Chun, Young-Jin Kim, Seung-Woo Kim

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 94464N (2015) https://doi.org/10.1117/12.2182140
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

We measure absolute distances by performing multi-wavelength interferometry (MWI) using four different wavelengths generated simultaneously from the frequency comb of a femtosecond laser. The measurement precision is estimated to be less than 63 nm in peak-to-valley over a distance of 1 m as compared to an incremental HeNe laser interferometer. We also evaluate the operational stability and robustness of the interferometer hardware system over a time period of 12 hours. Finally, it is concluded that the proposed frequency-comb-referenced multi-wavelength interferometry is capable of providing fast, precise and high stable absolute distance measurements, being well suited for industrial precisionengineering applications and near-future space missions.

Citation Download Citation

Guochao Wang, Yoon-Soo Jang, Hyunjay Kang, Byung Jae Chun, Young-Jin Kim, and Seung-Woo Kim "Absolute distance measurement using frequency-comb-referenced four-wavelength interferometry", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94464N (6 March 2015); https://doi.org/10.1117/12.2182140

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