High speed and high sensitivity fiber Bragg grating interrogator based on the RF phase-shift technique

Ziv Glasser; Yochai Ofer; Rita Abramov; Daniel Gotliv; Shmuel Sternklar

doi:https://doi.org/10.1016/j.optcom.2018.07.004

High speed and high sensitivity fiber Bragg grating interrogator based on the RF phase-shift technique

Ziv Glasser, Yochai Ofer, Rita Abramov, Daniel Gotliv, Shmuel Sternklar

Ariel University

Research output: Contribution to journal › Article › peer-review

Abstract

A high speed and high sensitivity fiber Bragg grating (FBG) interrogator based on RF phase-shift measurement is presented. Using a sinusoidal modulated source and a chromatic dispersion element, Bragg-wavelength shifts are converted directly to RF phase shifts. Interrogation speeds >1 MHz with <10 pm spectral sensitivity, and sensitivity <0.1 pm at 100 Hz speed are demonstrated. An overall sensitivity vs. speed dependence of 3.4 fm/Hz, which is equivalent to 3 nanostrain/Hz, is shown. As it is based on standard telecommunication components and electronic RF processing, without moving parts or reliance on interferometry, this technique is simple, robust and inexpensive, opening new applications that require fast and sensitive sensing.

Original language	English
Pages (from-to)	240-244
Number of pages	5
Journal	Optics Communications
Volume	428
DOIs	https://doi.org/10.1016/j.optcom.2018.07.004
State	Published - 1 Dec 2018

Keywords

Dispersion
Fiber Bragg grating
Fiber optic sensor
Interrogation
Nondestructive testing
Radio frequency photonics

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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https://doi.org/10.1016/j.optcom.2018.07.004

Cite this

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title = "High speed and high sensitivity fiber Bragg grating interrogator based on the RF phase-shift technique",

abstract = "A high speed and high sensitivity fiber Bragg grating (FBG) interrogator based on RF phase-shift measurement is presented. Using a sinusoidal modulated source and a chromatic dispersion element, Bragg-wavelength shifts are converted directly to RF phase shifts. Interrogation speeds >1 MHz with <10 pm spectral sensitivity, and sensitivity <0.1 pm at 100 Hz speed are demonstrated. An overall sensitivity vs. speed dependence of 3.4 fm/Hz, which is equivalent to 3 nanostrain/Hz, is shown. As it is based on standard telecommunication components and electronic RF processing, without moving parts or reliance on interferometry, this technique is simple, robust and inexpensive, opening new applications that require fast and sensitive sensing.",

keywords = "Dispersion, Fiber Bragg grating, Fiber optic sensor, Interrogation, Nondestructive testing, Radio frequency photonics",

author = "Ziv Glasser and Yochai Ofer and Rita Abramov and Daniel Gotliv and Shmuel Sternklar",

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doi = "https://doi.org/10.1016/j.optcom.2018.07.004",

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TY - JOUR

T1 - High speed and high sensitivity fiber Bragg grating interrogator based on the RF phase-shift technique

AU - Glasser, Ziv

AU - Ofer, Yochai

AU - Abramov, Rita

AU - Gotliv, Daniel

AU - Sternklar, Shmuel

PY - 2018/12/1

Y1 - 2018/12/1

N2 - A high speed and high sensitivity fiber Bragg grating (FBG) interrogator based on RF phase-shift measurement is presented. Using a sinusoidal modulated source and a chromatic dispersion element, Bragg-wavelength shifts are converted directly to RF phase shifts. Interrogation speeds >1 MHz with <10 pm spectral sensitivity, and sensitivity <0.1 pm at 100 Hz speed are demonstrated. An overall sensitivity vs. speed dependence of 3.4 fm/Hz, which is equivalent to 3 nanostrain/Hz, is shown. As it is based on standard telecommunication components and electronic RF processing, without moving parts or reliance on interferometry, this technique is simple, robust and inexpensive, opening new applications that require fast and sensitive sensing.

AB - A high speed and high sensitivity fiber Bragg grating (FBG) interrogator based on RF phase-shift measurement is presented. Using a sinusoidal modulated source and a chromatic dispersion element, Bragg-wavelength shifts are converted directly to RF phase shifts. Interrogation speeds >1 MHz with <10 pm spectral sensitivity, and sensitivity <0.1 pm at 100 Hz speed are demonstrated. An overall sensitivity vs. speed dependence of 3.4 fm/Hz, which is equivalent to 3 nanostrain/Hz, is shown. As it is based on standard telecommunication components and electronic RF processing, without moving parts or reliance on interferometry, this technique is simple, robust and inexpensive, opening new applications that require fast and sensitive sensing.

KW - Dispersion

KW - Fiber Bragg grating

KW - Fiber optic sensor

KW - Interrogation

KW - Nondestructive testing

KW - Radio frequency photonics

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U2 - https://doi.org/10.1016/j.optcom.2018.07.004

DO - https://doi.org/10.1016/j.optcom.2018.07.004

M3 - مقالة

SN - 0030-4018

VL - 428

SP - 240

EP - 244

JO - Optics Communications

JF - Optics Communications

ER -

High speed and high sensitivity fiber Bragg grating interrogator based on the RF phase-shift technique

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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