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Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating

Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating
Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating
Over the last decade extreme interest for microsphere resonators has increased rapidly due to their very high quality Q factors, the ease with which they can be manufactured and their versatility in terms of materials and dopants for plenty of passive and active devices. Furthermore, microsphere resonators have the potential to add significant functionality to planar lightwave circuits when coupled to waveguides where they can provide wavelength filtering, delay and low-power switching, and laser functions [1].
Recently, chalcogenides are rapidly establishing themselves technologically superior materials for emerging application in non-volatile memory and high speed switching [2] and have been considered for a range of other optoelectronic technologies. Chalcogenide glasses offer a wide wealth of active properties, an exceptionally high nonlinearity, photosensitivity, the ability to be doped with active elements including lanthanides and transitional metals and are able to form detectors, lasers and amplifiers and offer semiconductor, optical, acousto-optic, superconducting and opto-mechanical properties. Unlike any other optical material, they have been formed in to a multitude of form: such as optical fibres, thin films, bulk optical components, microsphere resonators, metamaterials and nanoparticles, patterned by CMOS compatible processing at the sub micron scale. To date, most studies on microsphere resonators have utilized silica microspheres fabricated by melting the tip of an optical fibre with the resulting stem attached to the microsphere used as a tool to place the sphere in the required location while characterizing the microsphere. In this paper high quality chalcogenide (As2S3) microspheres with diameters down to 74 µm are directly fabricated from the taper-drawn using a resistive heating process. A reasonable high quality factor greater than 105 near the wavelength of 1550 nm is demonstrated with an efficient coupling using a fibre taper with a diameter of 2 µm.
Wang, Pengfei
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Brambilla, G.
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Murugan, G.S.
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Semenova, Y.
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Wu, Q.
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Wilkinson, J.S.
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Farrell, G.
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Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Murugan, G.S.
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Semenova, Y.
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Wu, Q.
a013aa15-2165-47d6-bbe2-f83ae858e275
Wilkinson, J.S.
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Farrell, G.
09f74789-4377-4964-a6da-793184ad8c13

Wang, Pengfei, Brambilla, G., Murugan, G.S., Semenova, Y., Wu, Q., Wilkinson, J.S. and Farrell, G. (2011) Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating. ICCE-19: International Conference on Composites/Nano Engineering, Shanghai, China. 23 - 29 Jul 2011.

Record type: Conference or Workshop Item (Paper)

Abstract

Over the last decade extreme interest for microsphere resonators has increased rapidly due to their very high quality Q factors, the ease with which they can be manufactured and their versatility in terms of materials and dopants for plenty of passive and active devices. Furthermore, microsphere resonators have the potential to add significant functionality to planar lightwave circuits when coupled to waveguides where they can provide wavelength filtering, delay and low-power switching, and laser functions [1].
Recently, chalcogenides are rapidly establishing themselves technologically superior materials for emerging application in non-volatile memory and high speed switching [2] and have been considered for a range of other optoelectronic technologies. Chalcogenide glasses offer a wide wealth of active properties, an exceptionally high nonlinearity, photosensitivity, the ability to be doped with active elements including lanthanides and transitional metals and are able to form detectors, lasers and amplifiers and offer semiconductor, optical, acousto-optic, superconducting and opto-mechanical properties. Unlike any other optical material, they have been formed in to a multitude of form: such as optical fibres, thin films, bulk optical components, microsphere resonators, metamaterials and nanoparticles, patterned by CMOS compatible processing at the sub micron scale. To date, most studies on microsphere resonators have utilized silica microspheres fabricated by melting the tip of an optical fibre with the resulting stem attached to the microsphere used as a tool to place the sphere in the required location while characterizing the microsphere. In this paper high quality chalcogenide (As2S3) microspheres with diameters down to 74 µm are directly fabricated from the taper-drawn using a resistive heating process. A reasonable high quality factor greater than 105 near the wavelength of 1550 nm is demonstrated with an efficient coupling using a fibre taper with a diameter of 2 µm.

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e-pub ahead of print date: 2011
Venue - Dates: ICCE-19: International Conference on Composites/Nano Engineering, Shanghai, China, 2011-07-23 - 2011-07-29
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 343146
URI: http://eprints.soton.ac.uk/id/eprint/343146
PURE UUID: 2070bf1c-5879-426c-bd01-0764987531fc
ORCID for G.S. Murugan: ORCID iD orcid.org/0000-0002-2733-3273
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

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Date deposited: 26 Sep 2012 10:45
Last modified: 18 Feb 2021 17:05

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Contributors

Author: Pengfei Wang
Author: G. Brambilla
Author: G.S. Murugan ORCID iD
Author: Y. Semenova
Author: Q. Wu
Author: J.S. Wilkinson ORCID iD
Author: G. Farrell

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