0
Articles

Real-time vibration measurement using a feedback type of laser diode interferometer with an optical fiber

[+] Author Affiliations
Takamasa Suzuki, Takao Okada, Osami Sasaki, Takeo Maruyama

Niigata University, Faculty of Engineering, 8050 Ikarashi 2, Niigata 950-21, Japan

Opt. Eng. 36(9), 2496-2502 (Sep 01, 1997). doi:10.1117/1.601475
History: Received Dec. 10, 1996; Revised Apr. 1, 1997; Accepted Apr. 1, 1997
Text Size: A A A

Abstract

A laser diode interferometer that uses an optical fiber is proposed. The laser diode simultaneously functions as a light source, a phase modulator, and a phase compensator. Detection of the vibration and reduction of external disturbance are carried out using a feedback control for the injection current of the laser diode. Thus it can measure vibration accurately in real time with a simple signal processing circuit. The optical fiber not only functions as a flexible probe, enabling us to measure the vibration of an object that cannot be moved onto the optical bench, it also acts as a reference mirror, thereby simplifying the unit construction. The principle of the feedback control in laser diode interferometer is also described in detail. © 1997 Society of Photo-Optical Instrumentation Engineers.

© 1997 Society of Photo-Optical Instrumentation Engineers

Citation

Takamasa Suzuki ; Takao Okada ; Osami Sasaki and Takeo Maruyama
"Real-time vibration measurement using a feedback type of laser diode interferometer with an optical fiber", Opt. Eng. 36(9), 2496-2502 (Sep 01, 1997). ; http://dx.doi.org/10.1117/1.601475


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Figures

Tables

References

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


Buy this article ($18 for members, $25 for non-members).
Sign In