Fine correction of nonlinearity in homodyne interferometry

Peng-cheng Hu; Florian Pollinger; Karl Meiners-Hagen; Hong-xing Yang; Ahmed Abou-Zeid

doi:10.1117/12.885392

31 December 2010 Fine correction of nonlinearity in homodyne interferometry

Peng-cheng Hu, Florian Pollinger, Karl Meiners-Hagen, Hong-xing Yang, Ahmed Abou-Zeid

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75444E (2010) https://doi.org/10.1117/12.885392
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

In a typical homodyne interferometer with 4-channel detectors, the nonlinearity resulting from beam power drifting couldn't be thoroughly suppressed by Heydemann correction. This study presents an analysis of the nonlinearity resulting from beam power drifting. From a theoretical approach, the nonlinearity model before and after conventional Heydemann correction is built. And a fine correction method involving Heydemann correction with partial data is introduced. The experimental results indicate that, the proposed method suppresses the nonlinearity in a homodyne interferometer to 0.18 nm, which would be 1.49 nm with conventional Heydemann correction.

Citation Download Citation

Peng-cheng Hu, Florian Pollinger, Karl Meiners-Hagen, Hong-xing Yang, and Ahmed Abou-Zeid "Fine correction of nonlinearity in homodyne interferometry", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75444E (31 December 2010); https://doi.org/10.1117/12.885392

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