Abstract

This paper describes a homodyne laser vibrometer with optical shutters. The parameters that define the nonlinearity of the quadrature signals in a vibrometer can be pre-extracted before the measurement, and can then be used to compensate for nonlinear errors, such as unequal AC amplitudes and DC offsets. The experimental results indicated that the homodyne laser vibrometer developed has the ability to accurately detect the vibration state of the object to be measured, even when the amplitude is λ/4. The displacement residual error can be reduced to a value under 0.9 nm.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Quadrature phase-shift error analysis using a homodyne laser interferometer

Peter Gregorčič, Tomaž Požar, and Janez Možina
Opt. Express 17(18) 16322-16331 (2009)

Precision PGC demodulation for homodyne interferometer modulated with a combined sinusoidal and triangular signal

Liping Yan, Zhouqiang Chen, Benyong Chen, Jiandong Xie, Shihua Zhang, Yingtian Lou, and Enzheng Zhang
Opt. Express 26(4) 4818-4831 (2018)

DC-offset-free homodyne interferometer and its nonlinearity compensation

Pengcheng Hu, Jinghao Zhu, Xiaoyu Zhai, and JiuBin Tan
Opt. Express 23(7) 8399-8408 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (18)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription