Analyses of signal-to-noise ratio in optical-fiber heterodyne-type laser Doppler anemometer

Serguei Khotiaintsev; Luis Alonso Vazquez-Zuniga; Heidy Beatriz Mejia del Puerto

doi:10.1117/12.611666

14 February 2005 Analyses of signal-to-noise ratio in optical-fiber heterodyne-type laser Doppler anemometer

Serguei Khotiaintsev, Luis Alonso Vazquez-Zuniga, Heidy Beatriz Mejia del Puerto

Proceedings Volume 5776, Eighth International Symposium on Laser Metrology; (2005) https://doi.org/10.1117/12.611666
Event: Eighth International Conference on Laser Metrology, 2005, Merida, Mexico

Abstract

In this work, we present a new mathematical model of signal formation in the optical-fiber heterodyne-type LDA. This model accounts for different noise sources in the LDA including those associated with the optical-fiber guides used in the LDA. This model allows one to access the signal-to-noise ratio (SNR) of the optical-fiber LDA as a function of the optical fiber parameters and characteristcs of the laser source and photo-detector. We obtained the SNR under some typical combinations of LDA parameters. These included the laser power, photo-detector response, fiber attenuation, etc. Our analyses revealed the relative importance of different optical fiber parameters (optical absorption, Rayleigh and Brillouin scattering, etc) that together with the laser and photo-detector characteristics contribute to the SNR of the optical-fiber heterodyne-type LDA.

Citation Download Citation

Serguei Khotiaintsev, Luis Alonso Vazquez-Zuniga, and Heidy Beatriz Mejia del Puerto "Analyses of signal-to-noise ratio in optical-fiber heterodyne-type laser Doppler anemometer", Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); https://doi.org/10.1117/12.611666

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