A distributed optical fiber sensing system using Golay complementary sequences as the probing pulses has been presented. By applying Golay complementary sequences to Brillouin optical time domain reflectometer (BOTDR), the system performances such as signal-to-noise ratio and dynamic range can be improved greatly without degrading spatial resolution. This paper has researched the constitution and frequency performances of Golay complementary sequences. Based on the study of applying bipolar sequence to optical system, the idea of applying Golay complementary sequences to BOTDR system has been presented, and the performance improvement on SNR and dynamic range of the system have been calculated. At last, a BOTDR system based on Golay complementary sequences has been presented and the simulation results have demonstrated the feasibility of this method.

Date Published: 12 March 2008
PDF: 8 pages
Proc. SPIE 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing, 66240P (12 March 2008); doi: 10.1117/12.791086

Published in SPIE Proceedings Vol. 6624:
International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing
Liwei Zhou, Editor(s)