TY - JOUR
T1 - Observation of Backward Guided-Acoustic-Wave Brillouin Scattering in Optical Fibers Using Pump-Probe Technique
AU - Hayashi, Neisei
AU - Lee, Heeyoung
AU - Mizuno, Yosuke
AU - Nakamura, Kentaro
N1 - Funding Information:
This work was supported in part by the Japan Society for the Promotion of Science under KAKENHI Grant 25709032, KAKENHI Grant 26630180, and KAKENHI Grant 25007652 and in part by research grants from the Iwatani Naoji Foundation, the SCAT Foundation, and the Konica Minolta Science and Technology Foundation.
Publisher Copyright:
© 2016 IEEE.
PY - 2016/6
Y1 - 2016/6
N2 - We experimentally demonstrate the observation of backward (i.e., opposite of the direction of the pump) guided-acoustic-wave Brillouin scattering (GAWBS) using the pump-probe technique and investigate the spectral dependence on the pump-probe light power. We show that the signal-to-noise ratio (SNR) of the backward GAWBS measurement can be drastically improved by using this technique. We also observe a nonmonotonic dependence of the SNR on the probe power, which indicates that optimal probe power exists for implementing GAWBS-based distributed sensors.
AB - We experimentally demonstrate the observation of backward (i.e., opposite of the direction of the pump) guided-acoustic-wave Brillouin scattering (GAWBS) using the pump-probe technique and investigate the spectral dependence on the pump-probe light power. We show that the signal-to-noise ratio (SNR) of the backward GAWBS measurement can be drastically improved by using this technique. We also observe a nonmonotonic dependence of the SNR on the probe power, which indicates that optimal probe power exists for implementing GAWBS-based distributed sensors.
KW - Guided-acoustic-wave Brillouin scattering
KW - nonlinear optics
KW - optical fiber sensors
KW - pump-probe technique
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U2 - 10.1109/JPHOT.2016.2550321
DO - 10.1109/JPHOT.2016.2550321
M3 - Article
AN - SCOPUS:84968807235
VL - 8
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
SN - 1943-0655
IS - 3
M1 - 7458162
ER -