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A new electrical signal configuration for modulating pump light of coded discrete-phase shift pulse-BOTDA.
- Source :
- 2012 IEEE 3rd International Conference on Photonics; 1/ 1/2012, p294-298, 5p
- Publication Year :
- 2012
-
Abstract
- 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. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISBNs :
- 9781467314619
- Database :
- Complementary Index
- Journal :
- 2012 IEEE 3rd International Conference on Photonics
- Publication Type :
- Conference
- Accession number :
- 86541752
- Full Text :
- https://doi.org/10.1109/ICP.2012.6379861