Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription

Alex Fuerbach; Gayathri Bharathan; Toney Teddy Fernandez; Martin Ams

doi:10.1109/ICTON.2019.8840186

Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription

Alex Fuerbach, Gayathri Bharathan, Toney Teddy Fernandez, Martin Ams

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

2 Citations (Scopus)

Abstract

We report on research into the fabrication of different types of gratings into optical fibres that are transparent at mid-infrared wavelengths. In particular, we focus on direct femtosecond laser inscription of fibre-Bragg gratings with parallel as well as with tilted grating planes into zirconium and indium fluoride fibres. It is shown that post-annealing of the gratings can lead to an increase or decrease in reflectivity depending on the fabrication method and that even a relatively low concentration of rare-earth ions that are present in active fibres can have a big influence on the inscription process.Further, the feasibility investigating the physical mechanisms that underpin the induced refractive index modulation by utilising argon-beam cross-sectional polishing of the inscribed fibres followed by spatially resolved Raman microscopy and electron probe microanalysis, is discussed.

Original language	English
Title of host publication	ICTON 2019
Subtitle of host publication	21st International Conference on Transparent Optical Networks
Editors	Marek Jaworski, Marian Marciniak
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-4
Number of pages	4
ISBN (Electronic)	9781728127798
ISBN (Print)	9781728127804
DOIs	https://doi.org/10.1109/ICTON.2019.8840186
Publication status	Published - Jul 2019
Event	21st International Conference on Transparent Optical Networks, ICTON 2019 - Angers, France Duration: 9 Jul 2019 → 13 Jul 2019

Conference

Conference	21st International Conference on Transparent Optical Networks, ICTON 2019
Country/Territory	France
City	Angers
Period	9/07/19 → 13/07/19

Keywords

Femtosecond-laser inscription
Fibre Bragg gratings
Fluoride fibres
Mid-infrared fibres
Tilted fibre Bragg gratings

Access to Document

10.1109/ICTON.2019.8840186

Cite this

Fuerbach, A., Bharathan, G., Fernandez, T. T., & Ams, M. (2019). Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription. In M. Jaworski, & M. Marciniak (Eds.), ICTON 2019: 21st International Conference on Transparent Optical Networks (pp. 1-4). Article We.D6.4 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICTON.2019.8840186

Fuerbach, Alex ; Bharathan, Gayathri ; Fernandez, Toney Teddy et al. / Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription. ICTON 2019: 21st International Conference on Transparent Optical Networks. editor / Marek Jaworski ; Marian Marciniak. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2019. pp. 1-4

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title = "Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription",

abstract = "We report on research into the fabrication of different types of gratings into optical fibres that are transparent at mid-infrared wavelengths. In particular, we focus on direct femtosecond laser inscription of fibre-Bragg gratings with parallel as well as with tilted grating planes into zirconium and indium fluoride fibres. It is shown that post-annealing of the gratings can lead to an increase or decrease in reflectivity depending on the fabrication method and that even a relatively low concentration of rare-earth ions that are present in active fibres can have a big influence on the inscription process.Further, the feasibility investigating the physical mechanisms that underpin the induced refractive index modulation by utilising argon-beam cross-sectional polishing of the inscribed fibres followed by spatially resolved Raman microscopy and electron probe microanalysis, is discussed.",

keywords = "Femtosecond-laser inscription, Fibre Bragg gratings, Fluoride fibres, Mid-infrared fibres, Tilted fibre Bragg gratings",

author = "Alex Fuerbach and Gayathri Bharathan and Fernandez, {Toney Teddy} and Martin Ams",

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booktitle = "ICTON 2019",

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Fuerbach, A, Bharathan, G, Fernandez, TT & Ams, M 2019, Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription. in M Jaworski & M Marciniak (eds), ICTON 2019: 21st International Conference on Transparent Optical Networks., We.D6.4, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-4, 21st International Conference on Transparent Optical Networks, ICTON 2019, Angers, France, 9/07/19. https://doi.org/10.1109/ICTON.2019.8840186

Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription. / Fuerbach, Alex; Bharathan, Gayathri; Fernandez, Toney Teddy et al.
ICTON 2019: 21st International Conference on Transparent Optical Networks. ed. / Marek Jaworski; Marian Marciniak. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2019. p. 1-4 We.D6.4.

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

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AB - We report on research into the fabrication of different types of gratings into optical fibres that are transparent at mid-infrared wavelengths. In particular, we focus on direct femtosecond laser inscription of fibre-Bragg gratings with parallel as well as with tilted grating planes into zirconium and indium fluoride fibres. It is shown that post-annealing of the gratings can lead to an increase or decrease in reflectivity depending on the fabrication method and that even a relatively low concentration of rare-earth ions that are present in active fibres can have a big influence on the inscription process.Further, the feasibility investigating the physical mechanisms that underpin the induced refractive index modulation by utilising argon-beam cross-sectional polishing of the inscribed fibres followed by spatially resolved Raman microscopy and electron probe microanalysis, is discussed.

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Fuerbach A, Bharathan G, Fernandez TT, Ams M. Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription. In Jaworski M, Marciniak M, editors, ICTON 2019: 21st International Conference on Transparent Optical Networks. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2019. p. 1-4. We.D6.4 doi: 10.1109/ICTON.2019.8840186

Fabrication of gratings in mid-infrared compatible fibres via femtosecond laser direct inscription

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