Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Sinusoidal phase-modulating interferometer insensitive to intensity modulation of a laser diode for displacement measurement

Not Accessible

Your library or personal account may give you access

Abstract

In sinusoidal phase-modulating laser diode interferometers, an injection current of a laser diode is sinusoidally modulated to scan the laser wavelength. However, the modulation of the injection current also involves an intensity modulation of the light, which increases the measurement error if a conventional signal processing is used. A novel signal processing for displacement measurement is proposed to eliminate the influence of the intensity modulation. Numerical simulation results and experimental results make it clear that an optimal depth of the sinusoidal phase modulation exists that can reduce the measurement error to a few nanometers.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Sinusoidal phase-modulating laser diode interferometer for wide range displacement measurement

Ming Zhang, Chang Ni, Yu Zhu, Chuxiong Hu, Jinchun Hu, Leijie Wang, and Siqi Ding
Appl. Opt. 56(20) 5685-5691 (2017)

Double sinusoidal phase-modulating laser diode interferometer for distance measurement

Osami Sasaki, Tadahiko Yoshida, and Takamasa Suzuki
Appl. Opt. 30(25) 3617-3621 (1991)

Sinusoidal phase-modulating interferometer with ellipse fitting and a correction method

Chang Ni, Ming Zhang, Yu Zhu, Chuxiong Hu, Siqi Ding, and Zhe Jia
Appl. Opt. 56(13) 3895-3899 (2017)

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 Optica member, or as an authorized user of your institution.

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

Figures (7)

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

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

Tables (1)

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

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

Equations (19)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved