Wavelength locking of double FBG and its applications in fiber sensing system

Ming Chang Shih; Shieh Yueh Yang; Yi Shen Chen; Yi Tung Shiu; Yi Chiun Shen; Tzung Yu Shei

doi:10.1117/12.662377

Wavelength locking of double FBG and its applications in fiber sensing system

Ming Chang Shih, Shieh Yueh Yang, Yi Shen Chen, Yi Tung Shiu, Yi Chiun Shen, Tzung Yu Shei

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper we demonstrated a fiber sensing system using the method of wavelength locking of two nearly identical fiber Bragg gratings (FBG) to interrogate the wavelength shift by directly measuring the intensity of the reflection from the sampling FBG. The light source of the sensing system is based on a fiber ring laser structure in which a reference FBG is used for locking the wavelength of the fiber ring laser pumped by a 980 nm laser diode to achieve lasing at 1555.85 nm. The wavelength locking method is able to an effective way of interrogating the wavelength shifting of a FBG by the intensity of the reflection from the sampling FBG, and is able to achieve real time sensing of the physical perturbations. In addition, the characteristics of the fiber sensing system for dynamic vibration and the key factors to acquire stable sensing are discussed.

Original language	English
Title of host publication	Optical Sensing II
Volume	6189
DOIs	https://doi.org/10.1117/12.662377
Publication status	Published - 2006 Aug 9
Event	Optical Sensing II - Strasbourg, France Duration: 2006 Apr 3 → 2006 Apr 6

Other

Other	Optical Sensing II
Country	France
City	Strasbourg
Period	2006/04/03 → 2006/04/06

Keywords

Fiber Bragg grating
Ring laser
Sensors
Wavelength locking

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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title = "Wavelength locking of double FBG and its applications in fiber sensing system",

abstract = "In this paper we demonstrated a fiber sensing system using the method of wavelength locking of two nearly identical fiber Bragg gratings (FBG) to interrogate the wavelength shift by directly measuring the intensity of the reflection from the sampling FBG. The light source of the sensing system is based on a fiber ring laser structure in which a reference FBG is used for locking the wavelength of the fiber ring laser pumped by a 980 nm laser diode to achieve lasing at 1555.85 nm. The wavelength locking method is able to an effective way of interrogating the wavelength shifting of a FBG by the intensity of the reflection from the sampling FBG, and is able to achieve real time sensing of the physical perturbations. In addition, the characteristics of the fiber sensing system for dynamic vibration and the key factors to acquire stable sensing are discussed.",

keywords = "Fiber Bragg grating, Ring laser, Sensors, Wavelength locking",

author = "Shih, {Ming Chang} and Yang, {Shieh Yueh} and Chen, {Yi Shen} and Shiu, {Yi Tung} and Shen, {Yi Chiun} and Shei, {Tzung Yu}",

year = "2006",

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doi = "10.1117/12.662377",

language = "English",

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T1 - Wavelength locking of double FBG and its applications in fiber sensing system

AU - Shih, Ming Chang

AU - Yang, Shieh Yueh

AU - Chen, Yi Shen

AU - Shiu, Yi Tung

AU - Shen, Yi Chiun

AU - Shei, Tzung Yu

PY - 2006/8/9

Y1 - 2006/8/9

N2 - In this paper we demonstrated a fiber sensing system using the method of wavelength locking of two nearly identical fiber Bragg gratings (FBG) to interrogate the wavelength shift by directly measuring the intensity of the reflection from the sampling FBG. The light source of the sensing system is based on a fiber ring laser structure in which a reference FBG is used for locking the wavelength of the fiber ring laser pumped by a 980 nm laser diode to achieve lasing at 1555.85 nm. The wavelength locking method is able to an effective way of interrogating the wavelength shifting of a FBG by the intensity of the reflection from the sampling FBG, and is able to achieve real time sensing of the physical perturbations. In addition, the characteristics of the fiber sensing system for dynamic vibration and the key factors to acquire stable sensing are discussed.

AB - In this paper we demonstrated a fiber sensing system using the method of wavelength locking of two nearly identical fiber Bragg gratings (FBG) to interrogate the wavelength shift by directly measuring the intensity of the reflection from the sampling FBG. The light source of the sensing system is based on a fiber ring laser structure in which a reference FBG is used for locking the wavelength of the fiber ring laser pumped by a 980 nm laser diode to achieve lasing at 1555.85 nm. The wavelength locking method is able to an effective way of interrogating the wavelength shifting of a FBG by the intensity of the reflection from the sampling FBG, and is able to achieve real time sensing of the physical perturbations. In addition, the characteristics of the fiber sensing system for dynamic vibration and the key factors to acquire stable sensing are discussed.

KW - Fiber Bragg grating

KW - Ring laser

KW - Sensors

KW - Wavelength locking

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