Characterization of depolarized GAWBS for optomechanical sensing of liquids outside standard fibers

Neisei Hayashi; Yosuke Mizuno; Kentaro Nakamura; Sze Yun Set; Shinji Yamashita

doi:10.1117/12.2262964

23 April 2017 Characterization of depolarized GAWBS for optomechanical sensing of liquids outside standard fibers

Neisei Hayashi, Yosuke Mizuno, Kentaro Nakamura, Sze Yun Set, Shinji Yamashita

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103230M (2017) https://doi.org/10.1117/12.2262964
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We report an experimental study on the spectral dependence of depolarized guided acoustic-wave Brillouin scattering (GAWBS) in a silica single-mode fiber (SMF) on acoustic impedance of external materials. The GAWBS spectrum was measured when the acoustic impedance was changed from 1.51 to 2.35 kg/s⋅mm². With increasing acoustic impedance, the linewidth increased; the dependence was almost linear in the range up to ∼2.0 kg/s⋅mm² with an acoustic impedance dependence coefficient of 0.16 MHz/kg/s⋅mm², which is directly applicable to acoustic impedance sensing. Meanwhile, with increasing acoustic impedance, the central frequency nonlinearly decreased, which probably originates from the change in the effective outer diameter of the silica SMF.

Citation Download Citation

Neisei Hayashi, Yosuke Mizuno, Kentaro Nakamura, Sze Yun Set, and Shinji Yamashita "Characterization of depolarized GAWBS for optomechanical sensing of liquids outside standard fibers", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103230M (23 April 2017); https://doi.org/10.1117/12.2262964

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