Stable Multiwavelength Erbium Fiber Ring Laser With Optical Feedback for Remote Sensing

被引：54

作者：

Diaz, S. ^{[1
]}

Leandro, D. ^{[1
]}

Lopez-Amo, M. ^{[1
]}

机构：

[1] Univ Publ Navarra, Dept Elect & Elect Engn, E-31006 Navarra, Spain

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2015年 / 33卷 / 12期

关键词：

Erbium-doped fiber (EDF); fiber Bragg grating (FBG); multi-wavelength lasing; single-longitudinal-mode (SLM); DOPED FIBER; GENERATION;

D O I：

10.1109/JLT.2014.2365257

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：

In this paper, we demonstrate a stable fiber sensing system for remote temperature measurements, where the sensing element is an array of four fiber Bragg gratings and sensor interrogation is achieved with a multiwavelength erbium fiber ring laser. By introducing a feedback fiber loop in a fiber ring cavity, four laser emission lines were obtained simultaneously in single-longitudinal mode operation (SLM). The power instability obtained was lower than 0.5 dB with an optical signal-to-noise ratio higher than 50 dB for all the emitted wavelengths. The application of this system for remote temperature measurements has been demonstrated even though the SLM regime cannot be preserved.

引用

页码：2439 / 2444

页数：6

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