Abstract

A single-mode fiber-based polarization-independent Brillouin optical correlation domain analysis system is experimentally demonstrated by applying orthogonally polarized probe sidebands. The Brillouin gain and loss on orthogonally polarized Stokes and anti-Stokesprobe waves are simultaneously measured by balanced detection. The output is processed by a differential measurement scheme for suppressing the polarization dependency of the Brillouin gain spectrum. Compared to a polarization diversity scheme using a polarization switch, the measurement speed is doubled, and the error is reduced by more than 50%.

Bidirectional measurement for Brillouin optical correlation domain analysis

Ji Ho Jeong, Kwanil Lee, Kwang Yong Song, Je-Myung Jeong, and Sang Bae Lee
Opt. Express 20(10) 11091-11096 (2012)

Non-local effects in dual-probe-sideband Brillouin optical time domain analysis

Alejandro Dominguez-Lopez, Xabier Angulo-Vinuesa, Alexia Lopez-Gil, Sonia Martin-Lopez, and Miguel Gonzalez-Herraez
Opt. Express 23(8) 10341-10352 (2015)

Brillouin optical correlation domain analysis with more than 1 million effective sensing points based on differential measurement

Yong Hyun Kim, Kwanil Lee, and Kwang Yong Song
Opt. Express 23(26) 33241-33248 (2015)

Differential measurement scheme for Brillouin Optical Correlation Domain Analysis

Ji Ho Jeong, Kwanil Lee, Kwang Yong Song, Je-Myung Jeong, and Sang Bae Lee
Opt. Express 20(24) 27094-27101 (2012)

Long-range distributed Brillouin fiber sensors by use of an unbalanced double sideband probe

Romeo Bernini, Aldo Minardo, and Luigi Zeni
Opt. Express 19(24) 23845-23856 (2011)