Phase-shifting laser diode Sagnac interferometer for surface profile measurement

Takamasa Suzuki; Masato Shirai; Osami Sasaki

doi:10.1117/12.756447

26 November 2007 Phase-shifting laser diode Sagnac interferometer for surface profile measurement

Takamasa Suzuki; Masato Shirai; Osami Sasaki

Author Affiliations +

Proceedings Volume 6829, Advanced Materials and Devices for Sensing and Imaging III; 68290A (2007) https://doi.org/10.1117/12.756447
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

A phase-shifting Sagnac interferometer that uses wavelength tunability of the laser diode is proposed. A Sagnac interferometer itself is robust for the mechanical disturbances because it has a common path configuration and requires no special reference. Unbalanced optical path introduced between p- and s-polarized beams enables us to implement easy phase-shift by the direct current modulation. Several experimental results indicate that the proposed system is useful for the disturbance-free precise measurement.

Citation Download Citation

Takamasa Suzuki, Takamasa Suzuki, Masato Shirai, Masato Shirai, Osami Sasaki, Osami Sasaki, } "Phase-shifting laser diode Sagnac interferometer for surface profile measurement", Proc. SPIE 6829, Advanced Materials and Devices for Sensing and Imaging III, 68290A (26 November 2007); doi: 10.1117/12.756447; https://doi.org/10.1117/12.756447

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years