Effect of pulse chirp on distributed Brillouin fiber sensing

Carlos A. Galindez; Luc Thévenaz

doi:10.1117/12.786111

16 May 2008 Effect of pulse chirp on distributed Brillouin fiber sensing

Carlos A. Galindez, Luc Thévenaz

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70044J (2008) https://doi.org/10.1117/12.786111
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

The influence of the frequency chirp inherent to the generation of a pump pulse by a Mach-Zehnder intensity modulator is presented in the context of a distributed Brillouin sensor configuration. This frequency chirp depends on the pulse shape and its impact is related to the relative importance of the rising and falling edges with respect to the total pulse width. This results in a biased evaluation of the Brillouin frequency in regions where an abrupt change of this Brillouin frequency is observed.

Citation Download Citation

Carlos A. Galindez and Luc Thévenaz "Effect of pulse chirp on distributed Brillouin fiber sensing", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70044J (16 May 2008); https://doi.org/10.1117/12.786111

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