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Detrimental effect of self-phase modulation on the performance of Brillouin distributed fiber sensors

AuthorsFoaleng, S.M.; Rodríguez Barrios, Félix; Martín-López, Sonia; González Herráez, Miguel; Thévenaz, L.
Issue Date2011
PublisherOptical Society of America
CitationOptics Letters 36(2): 97-99 (2011)
AbstractWe show that the spectral broadening of the pump pulse through self-phase modulation in a time-domain distributed Brillouin sensor has a considerably detrimental effect in the measurement, especially in the case of long distances and high-resolution pulses. Using 30 ns pump pulses with peak power of 276 mW, self-phase modulation leads to a doubling of the effective gain linewidth after some 20 km, which is equivalent to a contrast loss of 2 dB in the measurement. The impact is higher for shorter pulses (higher resolution). The theoretical modeling is fully confirmed by experimental results. © 2011 Optical Society of America.
Identifiersdoi: 10.1364/OL.36.000097
issn: 0146-9592
e-issn: 1539-4794
Appears in Collections:(CFMAC-IO) Artículos
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