Resonant cavity time-division-multiplexed fiber Bragg grating sensor interrogator

被引：47

作者：

Lloyd, GD ^{[1
]}

Everall, LA

Sugden, K

Bennion, I

机构：

[1] Insensys Ltd, Fareham PO15 7AB, England

[2] Aston Univ, Photon Res Grp, Birmingham B4 7ET, W Midlands, England

[3] Aston Univ, Photon Res Grp, Birmingham B4 7ET, W Midlands, England

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2004年 / 16卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

fiber Bragg gratings (FBGs); optical fiber sensing; resonant cavity; semiconductor optical amplifier (SOA); time-division multiplexing (TDM);

D O I：

10.1109/LPT.2004.834849

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The first resonant-cavity time-division-multiplexed (TDM) fiber Bragg grating sensor interrogation system is reported. This novel design uses a pulsed semiconductor optical amplifier in a cyclic manner to function as the optical source, amplifier, and modulator. Compatible with a range of standard wavelength detection techniques, this optically gated TDM system allows interrogation of low reflectivity "commodity" sensors spaced just 2 m apart, using a single active component. Results demonstrate an exceptional optical signal-to-noise ratio of 36 dB, a peak signal power of over +7 dBm, and no measurable crosstalk between sensors. Temperature tuning shows that the system is fully stable with a highly linear response.

引用

页码：2323 / 2325

页数：3

共 8 条

[1] Time-division multiplexing of large serial fiber-optic Bragg grating sensor arrays [J].