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Ultra-low-loss optical fiber nanotapers

Ultra-low-loss optical fiber nanotapers
Ultra-low-loss optical fiber nanotapers
Optical fiber tapers with a waist size larger than 1µm are commonplace in telecommunications and sensor applications. However the fabrication of low-loss optical fiber tapers with subwavelength diameters was previously thought to be impractical due to difficulties associated with control of the surface roughness and diameter uniformity.

In this paper we show that very-long ultra-low-loss tapers can in fact be produced using a conventional fiber taper rig incorporating a simple burner configuration. For single-mode operation, the optical losses we achieve at 1.55µm are one order of magnitude lower than losses previously reported in the literature for tapers of a similar size. SEM images confirm excellent taper uniformity. We believe that these low-loss structures should pave the way to a whole range of fiber nanodevices.
fiber design, fabrication, fiber optics, optical design, optical fabrication, propagation
1094-4087
2258-2263
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Finazzi, Vittoria
948ad7dc-0c40-4159-a356-2a9727937473
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Finazzi, Vittoria
948ad7dc-0c40-4159-a356-2a9727937473
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Brambilla, Gilberto, Finazzi, Vittoria and Richardson, David (2004) Ultra-low-loss optical fiber nanotapers. Optics Express, 12 (10), 2258-2263. (doi:10.1364/OPEX.12.002258).

Record type: Article

Abstract

Optical fiber tapers with a waist size larger than 1µm are commonplace in telecommunications and sensor applications. However the fabrication of low-loss optical fiber tapers with subwavelength diameters was previously thought to be impractical due to difficulties associated with control of the surface roughness and diameter uniformity.

In this paper we show that very-long ultra-low-loss tapers can in fact be produced using a conventional fiber taper rig incorporating a simple burner configuration. For single-mode operation, the optical losses we achieve at 1.55µm are one order of magnitude lower than losses previously reported in the literature for tapers of a similar size. SEM images confirm excellent taper uniformity. We believe that these low-loss structures should pave the way to a whole range of fiber nanodevices.

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Published date: 2004
Keywords: fiber design, fabrication, fiber optics, optical design, optical fabrication, propagation

Identifiers

Local EPrints ID: 13908
URI: https://eprints.soton.ac.uk/id/eprint/13908
ISSN: 1094-4087
PURE UUID: 0a2446d9-fd3f-44c4-8321-bffae5a81751
ORCID for David Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 31 Dec 2004
Last modified: 26 Nov 2019 02:05

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Author: Vittoria Finazzi

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