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Large-range displacement measurement using sinusoidal phase-modulating laser diode interferometer

delete2017-01-01
delete6
PRE
AI
M
Ming Zhang *
C
Chang Ni Chang Ni
朱煜 cover
朱煜 (Yu Zhu Yu Zhu)
王
王磊杰 (Leijie Wang Leijie Wang)
C
Chuxiong Hu Chuxiong Hu
J
Jinchun Hu Jinchun Hu
DOI：10.3788/COL201715.101201delete
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Abstract

Abstract

En 中文
A signal processing method of realizing a large-range displacement measurement in a sinusoidal phase-modulating laser diode interferometer is proposed. The method of obtaining the dynamic value of the effective sinusoidal phase-modulating depth is detailed, and the residual amplitude modulation is also taken into account. Numerical simulations and experiments are carried out to compare this method with the traditional one. We prove that, with this method, the sinusoidal phase-modulating laser diode interferometer can realize a centimeter-level displacement measurement range with high precision, which is much better than the traditional method.
Keywords:
FREQUENCY-MODULATION

Journal

Optics Letters cover
Optics Letters
IF:
3.3
Papers:
4.0W
Citations:
7.6W

Organization

T
tsinghua university
Scholars:
11.9W
Papers: 10.0W
Citations: 137
Cited Papers

Cited Papers

No cited papers available