Experiment study on heterodyne Laser Doppler Vibrometry with three different structures

Jianhua Shang; Shuai Yan; Lihong Ren; Shuguang Zhao; Yan He

doi:10.1117/12.921367

17 February 2012 Experiment study on heterodyne Laser Doppler Vibrometry with three different structures

Jianhua Shang, Shuai Yan, Lihong Ren, Shuguang Zhao, Yan He

Proceedings Volume 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging; 833212 (2012) https://doi.org/10.1117/12.921367
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

The paper present three different all-fiber heterodyne Laser Doppler Vibrometry (HLDV) for acousto-optic communication according to the theory of the coherent detection. A line width of 1 kHz single mode continuous fiber laser and one telescope with a 30mm aperture are used in all of three HLDV. The first HLDV is made up with one acousto-optic frequency shifter (AOFS) and one balanced detector, the second one is made up with two AOFSs and two balanced detectors, and the third one is made up with two AOFSs and one balanced detector. The corresponding vibration measurements on the piezoelectric ceramic were performed and the results were compared in view of the noise floor and the spectrum distribution under 1kHz. For the low-frequency vibration measurement, the HLDV with two AOFSs and two balanced detectors shows a good application potential.

Citation Download Citation

Jianhua Shang, Shuai Yan, Lihong Ren, Shuguang Zhao, and Yan He "Experiment study on heterodyne Laser Doppler Vibrometry with three different structures", Proc. SPIE 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging, 833212 (17 February 2012); https://doi.org/10.1117/12.921367

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

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