Colour Simplex coding for Brillouin distributed sensors

被引：9

作者：

Le Floch, Sebastien ^{[1
]}

Sauser, Florian ^{[1
]}

Llera, Miguel ^{[1
]}

Soto, Marcelo A.

Thevenaz, Luc

机构：

[1] HE ARC, CH-2610 St Imier, Switzerland

来源：

FIFTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS | 2013年 / 8794卷

关键词：

Stimulated Brillouin scattering; fibre optics sensors; Simplex coding; distributed fibre sensors; BOTDA;

D O I：

10.1117/12.2025795

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

The possibility to customize Simplex coding for long range Brillouin Optical Time Domain Analysis is demonstrated by "colouring" the sequences in the frequency domain. The coding gain is identical to the traditional intensity-modulated Simplex code, though with much simplified series of sequences. The frequency-hopping pulses in return-to-zero intensity-modulated format are generated with a Direct-Digital Synthesizer. The proof-of-concept is experimentally demonstrated with measurements over a 50 km range (100 km fibre-loop) and a 2 meter spatial resolution.

引用

页数：4

共 11 条

[1]

Fellay A., 1997, 12th International Conference on Optical Fiber Sensors. Technical Digest. Postconference Edition, P324

[2]

Foaleng S. M., 2011, P SPIE, V7753

[3] BOTDA - NONDESTRUCTIVE MEASUREMENT OF SINGLE-MODE OPTICAL FIBER ATTENUATION CHARACTERISTICS USING BRILLOUIN INTERACTION - THEORY [J].