TY - JOUR
T1 - Fiber-optic perimeter security system based on dual Mach-Zehnder interferometer structure
AU - Jiang, Jishan
AU - Jiang, Yi
AU - Liu, Da
AU - Wang, Sumei
AU - Li, Xiaowei
N1 - Publisher Copyright:
©, 2015, Editorial Board of Optical Technique. All right reserved.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - A perimeter security system based on dual Mach-Zehnder interferometer is designed and researched. A cross-correlation algorithm is adopted to calculate the time difference of signals on two channels for locating invasion points. By means of processing data in segment, the stability and accuracy of system is improved effectively. An experiment with 2-kilometer-long sensing fiber is carried out, which shows that the dual Mach-Zehnder perimeter protection system can identify the position of vibration instantaneously and has a location accuracy of 200 meters at a sampling frequency of 2M, ensures stable long-time work as well.
AB - A perimeter security system based on dual Mach-Zehnder interferometer is designed and researched. A cross-correlation algorithm is adopted to calculate the time difference of signals on two channels for locating invasion points. By means of processing data in segment, the stability and accuracy of system is improved effectively. An experiment with 2-kilometer-long sensing fiber is carried out, which shows that the dual Mach-Zehnder perimeter protection system can identify the position of vibration instantaneously and has a location accuracy of 200 meters at a sampling frequency of 2M, ensures stable long-time work as well.
KW - Mach-Zehnder interferometer (MZI)
KW - Optical fiber sensor
KW - Perimeter protection
UR - https://www.scopus.com/pages/publications/84929461306
U2 - 10.3788/gxjs20154103.0193
DO - 10.3788/gxjs20154103.0193
M3 - Article
AN - SCOPUS:84929461306
SN - 1002-1582
VL - 41
SP - 193
EP - 196
JO - Guangxue Jishu/Optical Technique
JF - Guangxue Jishu/Optical Technique
IS - 3
ER -