Phase information-assisted method to obtain position of zero optical path difference for a pulse-train interferometer

Dong Wei; Yusuke Nagata; Masato Aketagawa

doi:10.1117/1.OE.57.11.114106

20 November 2018 Phase information-assisted method to obtain position of zero optical path difference for a pulse-train interferometer

Dong Wei, Yusuke Nagata, Masato Aketagawa

Author Affiliations +

Optical Engineering, Vol. 57, Issue 11, 114106 (November 2018). https://doi.org/10.1117/1.OE.57.11.114106

Abstract

In a pulse-train interferometer, the position of zero optical path difference (OPD) between the reference and object mirror can be obtained using the envelope peak of the interference fringe signal. Based on communication theory, frequency/phase information can provide higher accuracy compared to envelope/amplitude information. We propose a phase information-assisted method to obtain the position of zero OPD for a pulse-train interferometer. We demonstrate and verify that this phase approach can be used to determine the position of zero OPD with high accuracy using experimental data. This method is reliable and provides good performance for length measurement.

Citation Download Citation

Dong Wei, Yusuke Nagata, and Masato Aketagawa "Phase information-assisted method to obtain position of zero optical path difference for a pulse-train interferometer," Optical Engineering 57(11), 114106 (20 November 2018). https://doi.org/10.1117/1.OE.57.11.114106

Received: 24 July 2018; Accepted: 26 October 2018; Published: 20 November 2018

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