TY - GEN
T1 - A new electrical signal configuration for modulating pump light of coded discrete-phase shift pulse-BOTDA
AU - Zan, M. S.D.B.
AU - Horiguchi, T.
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Distributed optical fiber sensors by using Brillouin optical time-domain analysis (BOTDA) have been developed extensively by many researchers. Coding pulsed pump light of the BOTDA is an effective way to improve the signal-to-noise ratio (SNR). This article reports a new way to configure electrical signals that are amplified by an AC-coupled highspeed amplifier and then fed into an electro-optic modulator to generate coded pump light. The new configuration caused little distortion of the amplified electrical signals and consequently produced coded pump light with a good waveform with the modulator. The optical SNR of the coded BOTDA signals achieved by the new configuration was about 1dB better than that by a conventional way for 32 bit-length code.
AB - Distributed optical fiber sensors by using Brillouin optical time-domain analysis (BOTDA) have been developed extensively by many researchers. Coding pulsed pump light of the BOTDA is an effective way to improve the signal-to-noise ratio (SNR). This article reports a new way to configure electrical signals that are amplified by an AC-coupled highspeed amplifier and then fed into an electro-optic modulator to generate coded pump light. The new configuration caused little distortion of the amplified electrical signals and consequently produced coded pump light with a good waveform with the modulator. The optical SNR of the coded BOTDA signals achieved by the new configuration was about 1dB better than that by a conventional way for 32 bit-length code.
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U2 - 10.1109/ICP.2012.6379861
DO - 10.1109/ICP.2012.6379861
M3 - Conference contribution
AN - SCOPUS:84872085438
SN - 9781467314633
T3 - ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings
SP - 294
EP - 298
BT - ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings
T2 - 3rd International Conference on Photonics, ICP 2012
Y2 - 1 October 2012 through 3 October 2012
ER -