Nonlinearity analysis of dual-frequency laser interferometer with two longitudinal modes

Tao Zhang; Yanhua Wu; Lu Dong

doi:10.1117/12.865350

11 October 2010 Nonlinearity analysis of dual-frequency laser interferometer with two longitudinal modes

Tao Zhang, Yanhua Wu, Lu Dong

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 76562M (2010) https://doi.org/10.1117/12.865350
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

The nonlinearity error of the dual-frequency laser interferometer with two longitudinal modes and special subsequent electrical signal processing system was studied. The expressions for the output signal pair were derived based on the theoretical analysis when the nonlinearity existed. From the above it was given that the nonlinearity makes the frequency-mixing output signals shift and undulate, and its main factors are the perfection degree of the optical system adjustment and the polarization splitting degree of the polarization beam splitter. The maximum signal shift amplitude was close to that observed on oscillograph and it could be used to estimate the perfection degree of the optical system adjustment and determine the maximum interpolation number in the subsequent signal processing stage.

Citation Download Citation

Tao Zhang, Yanhua Wu, and Lu Dong "Nonlinearity analysis of dual-frequency laser interferometer with two longitudinal modes", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76562M (11 October 2010); https://doi.org/10.1117/12.865350

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