Femtosecond laser inscribed superstructure fibre gratings

K. Kalli; C. Koutsides; E. Davies; Michael Komodromos; David J. Webb; Lin Zhang

doi:10.1117/12.885994

Femtosecond laser inscribed superstructure fibre gratings

K. Kalli, C. Koutsides, E. Davies, Michael Komodromos, David J. Webb, Lin Zhang

Aston University

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

We demonstrate the development of femtosecond laser inscribed superstructure fiber gratings (fsSFG) in silica optical fibre. We utilise a single step process, to inscribe low loss and polarisation independent, sampled gratings in optical fibres using the point by point femtosecond laser inscription method. Our approach results in a controlled modulated index change with complete suppression of any overlapping LPG structure leading to highly symmetric superstructure spectra, with the grating reflection well within the Fourier design limit. We also solve Maxwell's equations and calculate the back reflection spectrum using the bidirectional beam propagation method (BiBPM). Experimental results validate our numerical analysis and the estimation of inscription parameters such as ac index modulation, wavelength and the relative peak strength. We also explore how changes in the grating's period influence the reflection spectrum.

Original language	English
Title of host publication	21st International Conference on Optical Fiber Sensors
Editors	Wojtek J. Bock, Jacques Albert, Xiaoyi Bao
Place of Publication	Bellingham, WA (US)
Publisher	SPIE
Number of pages	4
ISBN (Print)	978-0-8194-8246-4
DOIs	https://doi.org/10.1117/12.885994
Publication status	Published - 17 May 2011
Event	21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada Duration: 15 May 2011 → 19 May 2011 http://www.ofs21.org/

Publication series

Name	SPIE Proceedings
Publisher	SPIE
Volume	7753
ISSN (Print)	0277-786X
ISSN (Electronic)	2410-9045

Conference

Conference	21st International Conference on Optical Fiber Sensors
Abbreviated title	OFS21
Country/Territory	Canada
City	Ottawa, ON
Period	15/05/11 → 19/05/11
Internet address	http://www.ofs21.org/

Bibliographical note

K. Kalli, C. Koutsides, E. Davies, M. Komodromos, D. J. Webb and L. Zhang, "Femtosecond laser inscribed superstructure fibre gratings", Proc. SPIE 7753, 775393 (2011). 21st International Conference on Optical Fiber Sensors (OFS21), 15-19 May 2011, Ottawa (CA).

Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

DOI: http://dx.doi.org/10.1117/12.885994

Keywords

femtosecond laser inscribed superstructure fiber gratings
fsSFG
silica optical fibre
single step process
low loss
polarisation independent
sampled gratings
optical fibres
point by point femtosecond laser inscription method
controlled modulated index change
suppression
symmetric superstructure spectra
grating reflection
Fourier design limit
Maxwell's equations
back reflection spectrum
bidirectional beam propagation method
BiBPM
ac index modulation
wavelength
peak strength

Access to Document

10.1117/12.885994

Femtosecond laser inscribed superstructure fibre gratings
K. Kalli, C. Koutsides, E. Davies, M. Komodromos, D. J. Webb and L. Zhang, "Femtosecond laser inscribed superstructure fibre gratings", Proc. SPIE 7753, 775393 (2011). 21st International Conference on Optical Fiber Sensors (OFS21), 15-19 May 2011, Ottawa (CA). Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.885994
Final published version, 482 KB

Cite this

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title = "Femtosecond laser inscribed superstructure fibre gratings",

abstract = "We demonstrate the development of femtosecond laser inscribed superstructure fiber gratings (fsSFG) in silica optical fibre. We utilise a single step process, to inscribe low loss and polarisation independent, sampled gratings in optical fibres using the point by point femtosecond laser inscription method. Our approach results in a controlled modulated index change with complete suppression of any overlapping LPG structure leading to highly symmetric superstructure spectra, with the grating reflection well within the Fourier design limit. We also solve Maxwell's equations and calculate the back reflection spectrum using the bidirectional beam propagation method (BiBPM). Experimental results validate our numerical analysis and the estimation of inscription parameters such as ac index modulation, wavelength and the relative peak strength. We also explore how changes in the grating's period influence the reflection spectrum.",

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author = "K. Kalli and C. Koutsides and E. Davies and Michael Komodromos and Webb, {David J.} and Lin Zhang",

note = "K. Kalli, C. Koutsides, E. Davies, M. Komodromos, D. J. Webb and L. Zhang, {"}Femtosecond laser inscribed superstructure fibre gratings{"}, Proc. SPIE 7753, 775393 (2011). 21st International Conference on Optical Fiber Sensors (OFS21), 15-19 May 2011, Ottawa (CA). Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.885994; 21st International Conference on Optical Fiber Sensors, OFS21 ; Conference date: 15-05-2011 Through 19-05-2011",

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Kalli, K, Koutsides, C, Davies, E, Komodromos, M, Webb, DJ & Zhang, L 2011, Femtosecond laser inscribed superstructure fibre gratings. in WJ Bock, J Albert & X Bao (eds), 21st International Conference on Optical Fiber Sensors., 775393, SPIE Proceedings, vol. 7753, SPIE, Bellingham, WA (US), 21st International Conference on Optical Fiber Sensors, Ottawa, ON, Canada, 15/05/11. https://doi.org/10.1117/12.885994

TY - GEN

T1 - Femtosecond laser inscribed superstructure fibre gratings

AU - Kalli, K.

AU - Koutsides, C.

AU - Davies, E.

AU - Komodromos, Michael

AU - Webb, David J.

AU - Zhang, Lin

N1 - K. Kalli, C. Koutsides, E. Davies, M. Komodromos, D. J. Webb and L. Zhang, "Femtosecond laser inscribed superstructure fibre gratings", Proc. SPIE 7753, 775393 (2011). 21st International Conference on Optical Fiber Sensors (OFS21), 15-19 May 2011, Ottawa (CA). Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.885994

PY - 2011/5/17

Y1 - 2011/5/17

N2 - We demonstrate the development of femtosecond laser inscribed superstructure fiber gratings (fsSFG) in silica optical fibre. We utilise a single step process, to inscribe low loss and polarisation independent, sampled gratings in optical fibres using the point by point femtosecond laser inscription method. Our approach results in a controlled modulated index change with complete suppression of any overlapping LPG structure leading to highly symmetric superstructure spectra, with the grating reflection well within the Fourier design limit. We also solve Maxwell's equations and calculate the back reflection spectrum using the bidirectional beam propagation method (BiBPM). Experimental results validate our numerical analysis and the estimation of inscription parameters such as ac index modulation, wavelength and the relative peak strength. We also explore how changes in the grating's period influence the reflection spectrum.

AB - We demonstrate the development of femtosecond laser inscribed superstructure fiber gratings (fsSFG) in silica optical fibre. We utilise a single step process, to inscribe low loss and polarisation independent, sampled gratings in optical fibres using the point by point femtosecond laser inscription method. Our approach results in a controlled modulated index change with complete suppression of any overlapping LPG structure leading to highly symmetric superstructure spectra, with the grating reflection well within the Fourier design limit. We also solve Maxwell's equations and calculate the back reflection spectrum using the bidirectional beam propagation method (BiBPM). Experimental results validate our numerical analysis and the estimation of inscription parameters such as ac index modulation, wavelength and the relative peak strength. We also explore how changes in the grating's period influence the reflection spectrum.

KW - femtosecond laser inscribed superstructure fiber gratings

KW - fsSFG

KW - silica optical fibre

KW - single step process

KW - low loss

KW - polarisation independent

KW - sampled gratings

KW - optical fibres

KW - point by point femtosecond laser inscription method

KW - controlled modulated index change

KW - suppression

KW - symmetric superstructure spectra

KW - grating reflection

KW - Fourier design limit

KW - Maxwell's equations

KW - back reflection spectrum

KW - bidirectional beam propagation method

KW - BiBPM

KW - ac index modulation

KW - wavelength

KW - peak strength

UR - http://www.scopus.com/inward/record.url?scp=79957994832&partnerID=8YFLogxK

UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=753369

U2 - 10.1117/12.885994

DO - 10.1117/12.885994

M3 - Conference publication

SN - 978-0-8194-8246-4

T3 - SPIE Proceedings

BT - 21st International Conference on Optical Fiber Sensors

A2 - Bock, Wojtek J.

A2 - Albert, Jacques

A2 - Bao, Xiaoyi

PB - SPIE

CY - Bellingham, WA (US)

T2 - 21st International Conference on Optical Fiber Sensors

Y2 - 15 May 2011 through 19 May 2011

ER -

Femtosecond laser inscribed superstructure fibre gratings

Abstract

Publication series

Conference

Bibliographical note

Keywords

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