Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings

Gayathri Bharathan; Toney Teddy Fernandez; Martin Ams; Robert I. Woodward; Darren D. Hudson; Alex Fuerbach

doi:10.1109/CLEOE-EQEC.2019.8872746

Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings

Gayathri Bharathan, Toney Teddy Fernandez, Martin Ams, Robert I. Woodward, Darren D. Hudson, Alex Fuerbach

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

Abstract

Mid-infrared (mid-IR) fiber lasers in the 2.5-5 μm wavelength range have great potential to play a pivotal role in spectroscopy and medicine [1]. However, at present the non-existence of fiber-coupled optical components for these wavelengths severely limits the ability to build highly efficient alignment-free, low loss all-fiber lasers. This relates to the fact that fabricating various in-fiber components in fluoride fiber is a challenging problem, due to the difference in glass properties and handling requirements compared to standard silica fibers. Here, we address this problem by reporting the direct femtosecond (fs) laser inscription of high reflectivity (99.98%), low loss (<0.5 dB), Type-I fiber Bragg gratings (FBGs) into the core of soft-glass ZBLAN fibers for mid-IR applications.

Original language	English
Title of host publication	CLEO/Europe-EQEC 2019
Subtitle of host publication	Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1
Number of pages	1
ISBN (Electronic)	9781728104690, 9781557528209
ISBN (Print)	9781728104706
DOIs	https://doi.org/10.1109/CLEOE-EQEC.2019.8872746
Publication status	Published - Jun 2019
Event	2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany Duration: 23 Jun 2019 → 27 Jun 2019

Conference

Conference	2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Country/Territory	Germany
City	Munich
Period	23/06/19 → 27/06/19

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10.1109/CLEOE-EQEC.2019.8872746

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Bharathan, G., Fernandez, T. T., Ams, M., Woodward, R. I., Hudson, D. D., & Fuerbach, A. (2019). Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings. In CLEO/Europe-EQEC 2019: Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference (pp. 1). Article 8872746 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/CLEOE-EQEC.2019.8872746

Bharathan, Gayathri ; Fernandez, Toney Teddy ; Ams, Martin et al. / Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings. CLEO/Europe-EQEC 2019: Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2019. pp. 1

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abstract = "Mid-infrared (mid-IR) fiber lasers in the 2.5-5 μm wavelength range have great potential to play a pivotal role in spectroscopy and medicine [1]. However, at present the non-existence of fiber-coupled optical components for these wavelengths severely limits the ability to build highly efficient alignment-free, low loss all-fiber lasers. This relates to the fact that fabricating various in-fiber components in fluoride fiber is a challenging problem, due to the difference in glass properties and handling requirements compared to standard silica fibers. Here, we address this problem by reporting the direct femtosecond (fs) laser inscription of high reflectivity (99.98%), low loss (<0.5 dB), Type-I fiber Bragg gratings (FBGs) into the core of soft-glass ZBLAN fibers for mid-IR applications.",

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Bharathan, G, Fernandez, TT, Ams, M, Woodward, RI, Hudson, DD & Fuerbach, A 2019, Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings. in CLEO/Europe-EQEC 2019: Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference., 8872746, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Munich, Germany, 23/06/19. https://doi.org/10.1109/CLEOE-EQEC.2019.8872746

Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings. / Bharathan, Gayathri; Fernandez, Toney Teddy; Ams, Martin et al.
CLEO/Europe-EQEC 2019: Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2019. p. 1 8872746.

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

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AB - Mid-infrared (mid-IR) fiber lasers in the 2.5-5 μm wavelength range have great potential to play a pivotal role in spectroscopy and medicine [1]. However, at present the non-existence of fiber-coupled optical components for these wavelengths severely limits the ability to build highly efficient alignment-free, low loss all-fiber lasers. This relates to the fact that fabricating various in-fiber components in fluoride fiber is a challenging problem, due to the difference in glass properties and handling requirements compared to standard silica fibers. Here, we address this problem by reporting the direct femtosecond (fs) laser inscription of high reflectivity (99.98%), low loss (<0.5 dB), Type-I fiber Bragg gratings (FBGs) into the core of soft-glass ZBLAN fibers for mid-IR applications.

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Bharathan G, Fernandez TT, Ams M, Woodward RI, Hudson DD, Fuerbach A. Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings. In CLEO/Europe-EQEC 2019: Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2019. p. 1. 8872746 doi: 10.1109/CLEOE-EQEC.2019.8872746

Direct femtosecond laser inscription of highly reflective and low loss mid-infrared fiber bragg gratings

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