Bending characteristics of fiber long-period gratings with cladding index modified by femtosecond laser

Thomas D.P. Allsop; Mykhaylo Dubov; Amós Martínez; Filip Floreani; Igor Khrushchev; David J. Webb; Ian Bennion

doi:10.1109/JLT.2006.878037

Bending characteristics of fiber long-period gratings with cladding index modified by femtosecond laser

Thomas D.P. Allsop^*, Mykhaylo Dubov, Amós Martínez, Filip Floreani, Igor Khrushchev, David J. Webb, Ian Bennion

^*Corresponding author for this work

College of Engineering and Physical Sciences

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

Abstract

A femtosecond laser has been used to asymmetrically modify the cladding of fiber containing long-period gratings. Following modification, devices in single-mode fiber are shown to be capable of sensing the magnitude and direction of bending in one plane by producing blue and red wavelength shifts depending upon the orientation of the bend. The resulting curvature sensitivities were -1.62 and +3.82 nm·m. Devices have also been produced using an elliptical core fiber to study the effects of the cladding modification on the two polarization eigenstates. A cladding modification applied on the fast axis of the fiber is shown to affect the light in the fast axis much more significantly than the light in the orthogonal state; this behavior may ultimately lead to a sensor capable of detecting the direction of bending in two dimensions for applications in shape sensing. © 2006 IEEE.

Original language	English
Pages (from-to)	3147-3154
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	24
Issue number	8
DOIs	https://doi.org/10.1109/JLT.2006.878037
Publication status	Published - 1 Aug 2006

Bibliographical note

©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Keywords

curvature measurement
long-period fiber gratings
polarization dependence

Access to Document

10.1109/JLT.2006.878037

Bending_Characteristics_of_Fiber_LPG_with_cladding_Index_Modified_by_fs_laserJLT_v.24_No8_(2006).pdf
©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Final published version, 375 KB

Cite this

@article{1fe9351a24a94ccbb2e92525efefa24a,

title = "Bending characteristics of fiber long-period gratings with cladding index modified by femtosecond laser",

abstract = "A femtosecond laser has been used to asymmetrically modify the cladding of fiber containing long-period gratings. Following modification, devices in single-mode fiber are shown to be capable of sensing the magnitude and direction of bending in one plane by producing blue and red wavelength shifts depending upon the orientation of the bend. The resulting curvature sensitivities were -1.62 and +3.82 nm·m. Devices have also been produced using an elliptical core fiber to study the effects of the cladding modification on the two polarization eigenstates. A cladding modification applied on the fast axis of the fiber is shown to affect the light in the fast axis much more significantly than the light in the orthogonal state; this behavior may ultimately lead to a sensor capable of detecting the direction of bending in two dimensions for applications in shape sensing. {\textcopyright} 2006 IEEE.",

keywords = "curvature measurement, long-period fiber gratings, polarization dependence",

author = "Allsop, {Thomas D.P.} and Mykhaylo Dubov and Am{\'o}s Mart{\'i}nez and Filip Floreani and Igor Khrushchev and Webb, {David J.} and Ian Bennion",

note = "{\textcopyright}2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.",

year = "2006",

month = aug,

day = "1",

doi = "10.1109/JLT.2006.878037",

language = "English",

volume = "24",

pages = "3147--3154",

journal = "Journal of Lightwave Technology",

issn = "0733-8724",

publisher = "IEEE",

number = "8",

}

TY - JOUR

T1 - Bending characteristics of fiber long-period gratings with cladding index modified by femtosecond laser

AU - Allsop, Thomas D.P.

AU - Dubov, Mykhaylo

AU - Martínez, Amós

AU - Floreani, Filip

AU - Khrushchev, Igor

AU - Webb, David J.

AU - Bennion, Ian

N1 - ©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 2006/8/1

Y1 - 2006/8/1

N2 - A femtosecond laser has been used to asymmetrically modify the cladding of fiber containing long-period gratings. Following modification, devices in single-mode fiber are shown to be capable of sensing the magnitude and direction of bending in one plane by producing blue and red wavelength shifts depending upon the orientation of the bend. The resulting curvature sensitivities were -1.62 and +3.82 nm·m. Devices have also been produced using an elliptical core fiber to study the effects of the cladding modification on the two polarization eigenstates. A cladding modification applied on the fast axis of the fiber is shown to affect the light in the fast axis much more significantly than the light in the orthogonal state; this behavior may ultimately lead to a sensor capable of detecting the direction of bending in two dimensions for applications in shape sensing. © 2006 IEEE.

AB - A femtosecond laser has been used to asymmetrically modify the cladding of fiber containing long-period gratings. Following modification, devices in single-mode fiber are shown to be capable of sensing the magnitude and direction of bending in one plane by producing blue and red wavelength shifts depending upon the orientation of the bend. The resulting curvature sensitivities were -1.62 and +3.82 nm·m. Devices have also been produced using an elliptical core fiber to study the effects of the cladding modification on the two polarization eigenstates. A cladding modification applied on the fast axis of the fiber is shown to affect the light in the fast axis much more significantly than the light in the orthogonal state; this behavior may ultimately lead to a sensor capable of detecting the direction of bending in two dimensions for applications in shape sensing. © 2006 IEEE.

KW - curvature measurement

KW - long-period fiber gratings

KW - polarization dependence

UR - http://www.scopus.com/inward/record.url?scp=33747618732&partnerID=8YFLogxK

UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1667836

U2 - 10.1109/JLT.2006.878037

DO - 10.1109/JLT.2006.878037

M3 - Article

SN - 0733-8724

VL - 24

SP - 3147

EP - 3154

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 8

ER -

Bending characteristics of fiber long-period gratings with cladding index modified by femtosecond laser

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this