Title :
Combined Attenuation and High-Resolution Fault Measurements Using Chaos-OTDR
Author :
Xiangyu Dong ; Anbang Wang ; Jianguo Zhang ; Hong Han ; Tong Zhao ; Xianglian Liu ; Yuncai Wang
Author_Institution :
Key Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, China
Abstract :
We propose a combined attenuation and high-resolution fault measurement method using chaos optical time-domain reflectometry (OTDR). Utilizing the pulse-modulated chaotic light and correlation operation, this technique realizes fiber attenuation measurement and a distance-independent spatial resolution simultaneously. We demonstrate a proof-of-concept experiment for measurements of a single-mode fiber (G.652) and a fiber link consisting of a single-mode fiber (G.652) and a conventional (62.5-μm) multimode fiber. The measurement results show that different attenuation coefficients can be measured, and the coefficients agree well with the values obtained by using conventional OTDR. A 0.6-m resolution is achieved with a data acquisition bandwidth of 200 MHz.
Keywords :
light attenuation; optical chaos; optical correlation; optical fibre communication; optical fibre testing; optical links; optical modulation; optical pulse generation; optical time-domain reflectometry; pulse modulation; attenuation coefficients; bandwidth 200 MHz; chaos-OTDR; correlation operation; data acquisition; distance-independent spatial resolution; fiber attenuation measurement; fiber link; high-resolution fault measurement; optical time-domain reflectometry; pulse-modulated chaotic light; single mode fiber; wavelength 62.5 mum; Attenuation; Attenuation measurement; Bandwidth; Correlation; Optical attenuators; Optical fibers; Spatial resolution; Chaos; fiber attenuation; optical time domain reflectometry (OTDR);
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2501650
