Multiple fiber Bragg grating sensing system based on active mode-locking fiber laser

IF 0.7 4区物理与天体物理 Q4 OPTICS

Optica Applicata Pub Date : 2022-01-01 DOI:10.37190/oa220304

Delong Meng, Xiaolei Yu, Zhimin Zhao, Shilei Shan, Hongzhe Li

引用次数: 0

Abstract

In this paper, a new multiple fiber Bragg grating (FBG) sensing system based on active mode-locking fiber laser is proposed. The active mode-locking fiber laser is composed of a linear cavity with an Fabry–Perot laser diode (F-P LD) as a reflective cavity mirror, and the erbium-doped fiber as the gain medium. Meanwhile, the F-P LD is also used as the modulating element of the fiber laser. Multiple FBGs cascaded in a long fiber are used as both the sensors in the system and the components for wavelength selection in the active mode-locking fiber laser. The capacity of the proposed sensing system to interrogate multiple FBGs in wavelength and spatial domain is investigated. The proposed sensing system has the characteristics of low cost, good stability, good compatibility, and can be used in quasi-distributed multi-point sensing.

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基于有源锁模光纤激光器的多光纤布拉格光栅传感系统

本文提出了一种基于有源锁模光纤激光器的多光纤布拉格光栅传感系统。主动锁模光纤激光器由以法布里-珀罗激光二极管(F-P LD)为反射腔镜的线性腔和掺铒光纤作为增益介质组成。同时，F-P LD也被用作光纤激光器的调制元件。在主动式锁模光纤激光器中，多个fbg级联在一根长光纤中作为传感器和波长选择元件。研究了该传感系统在波长和空间范围内对多个fbg进行询问的能力。该传感系统具有成本低、稳定性好、兼容性好等特点，可用于准分布式多点传感。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optica Applicata 物理-光学

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

4 months

期刊介绍： Acoustooptics, atmospheric and ocean optics, atomic and molecular optics, coherence and statistical optics, biooptics, colorimetry, diffraction and gratings, ellipsometry and polarimetry, fiber optics and optical communication, Fourier optics, holography, integrated optics, lasers and their applications, light detectors, light and electron beams, light sources, liquid crystals, medical optics, metamaterials, microoptics, nonlinear optics, optical and electron microscopy, optical computing, optical design and fabrication, optical imaging, optical instrumentation, optical materials, optical measurements, optical modulation, optical properties of solids and thin films, optical sensing, optical systems and their elements, optical trapping, optometry, photoelasticity, photonic crystals, photonic crystal fibers, photonic devices, physical optics, quantum optics, slow and fast light, spectroscopy, storage and processing of optical information, ultrafast optics.