Fiber-ring laser sensor system using a fiber Fabry-Pérot filter for ultrasound detection

We propose and experimentally demonstrate a multiplexing methodology for ultrasonic sensors based on fiber Bragg gratings (FBGs) that are included in the laser cavity of a semiconductor optical amplifier (SOA)-based fiber-ring laser system coupled with a fiber Fabry-Pérot (FFP) filter. The fiber ring laser (FRL) consists of an SOA as a gain medium and of FBGs as wavelength selection elements. We experimentally fabricate a dual-wavelength fiber ring laser and confirm stable oscillation outputs of the laser source. And ultrasonic signals generated from the piezoelectric transducers (PZTs) source are successfully detected. Such a multiplexed fiber-optic ultrasonic sensor system may be used for acoustic emission (AE) detection for structural health monitoring (SHM).

[1]  Dongsheng Li,et al.  Corrosion monitoring of rock bolt by using a low coherent fiber-optic interferometry , 2015 .

[2]  Wenjun Zhou,et al.  Highly sensitive fiber loop ringdown strain sensor using photonic crystal fiber interferometer. , 2011, Applied optics.

[3]  Ming Han,et al.  Intensity-demodulated fiber-ring laser sensor system for acoustic emission detection. , 2013, Optics express.

[5]  Farhad Ansari,et al.  Practical Implementation of Optical Fiber Sensors in Civil Structural Health Monitoring , 2007 .

[6]  C. Tao,et al.  Detection of dynamic signals from multiplexed SOA-based fiber-ring laser sensors. , 2018, Applied optics.

[7]  Ming Chang Shih,et al.  Dynamic strain monitoring by wavelength locking between two fiber Bragg gratings fiber sensing system , 2008 .

[8]  Yanjun Cui,et al.  The Performance Analysis of Distributed Brillouin Corrosion Sensors for Steel Reinforced Concrete Structures , 2013, Sensors.

[9]  Sridhar Krishnaswamy,et al.  A fiber Bragg grating based tunable laser source for quasi-static and dynamic strain monitoring , 2009, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[10]  Sait Eser Karlik,et al.  A distributed optical fiber sensor for temperature detection in power cables , 2006 .

[11]  S. Sales,et al.  Packaged Optical Sensors Based on Regenerated Fiber Bragg Gratings for High Temperature Applications , 2012, IEEE Sensors Journal.

[12]  Nezih Mrad,et al.  Fiber Optic Sensors for Structural Health Monitoring of Air Platforms , 2011, Sensors.

[13]  Changsen Sun,et al.  Quantitative investigation in distributed sensing of structural defects with Brillouin optical time domain reflectometry , 2013 .

[14]  L. I. Bulatov,et al.  Bismuth-doped-glass optical fibers--a new active medium for lasers and amplifiers. , 2006, Optics letters.

[15]  K. Hill,et al.  Photosensitivity in optical fiber waveguides: Application to reflection filter fabrication , 1978 .

[16]  H. Murayama,et al.  Strain monitoring of a single-lap joint with embedded fiber-optic distributed sensors , 2012 .

[17]  Fiber Bragg grating dynamic strain sensor using an adaptive reflective semiconductor optical amplifier source. , 2016, Applied optics.

[18]  Y. Rao,et al.  Microbubble based fiber-optic Fabry-Perot interferometer formed by fusion splicing single-mode fibers for strain measurement. , 2012, Applied optics.

[19]  Antonio Quintela Incera,et al.  Fiber Optic Sensors in Structural Health Monitoring , 2011, Journal of Lightwave Technology.