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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 7 — Apr. 7, 2014
  • pp: 7799–7810

Continual mechanical vibration trajectory tracking based on electro-optical heterodyne interferometry

Shengjia Wang, Zhan Gao, Guangyu Li, Ziang Feng, and Qibo Feng  »View Author Affiliations

Optics Express, Vol. 22, Issue 7, pp. 7799-7810 (2014)

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Vibration is one of the confused problems in many fields. To give a comprehensive analysis of vibration, an electro-optical heterodyne interferometry with temporal intensity analysis method that can track the trajectory of the vibration dynamically has been built in this paper. The carrier frequency is introduced by the electrically controlled electro-optical frequency shifter. The trajectory is obtained by using temporal evolution of the light intensity in heterodyne interferometry. The instantaneous displacement of the vibration is extracted with spectral analysis technique. No target mirror and moving parts are required in our self-developed system. The principle and system configuration are described. The simulations and the preliminary experiments have been performed and the results show that this trajectory tracking system is high-efficiency, low-cost, jamproof, robust, precise and simple.

© 2014 Optical Society of America

OCIS Codes
(040.2840) Detectors : Heterodyne
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(230.2090) Optical devices : Electro-optical devices
(250.4110) Optoelectronics : Modulators

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: January 13, 2014
Revised Manuscript: March 16, 2014
Manuscript Accepted: March 20, 2014
Published: March 27, 2014

Shengjia Wang, Zhan Gao, Guangyu Li, Ziang Feng, and Qibo Feng, "Continual mechanical vibration trajectory tracking based on electro-optical heterodyne interferometry," Opt. Express 22, 7799-7810 (2014)

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