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All-solid highly nonlinear singlemode fibers with a tailored dispersion profile

All-solid highly nonlinear singlemode fibers with a tailored dispersion profile
All-solid highly nonlinear singlemode fibers with a tailored dispersion profile
We investigate a novel approach to obtain highly nonlinear fibers with a tailored group velocity dispersion around a desired wavelength region of interest. Rather than exploiting longitudinal holes to control the average refractive index of the cladding and hence the fiber's waveguide dispersion, as in holey fibers, we propose using an all-solid cladding with a suitably chosen refractive index difference relative to the core. We demonstrate numerically that this solution allows a large freedom in the manipulation of the overall fiber dispersive properties, while enabling, in practice, a much more accurate control of the fiber's structural properties during fabrication. Effectively single mode guidance over a broad wavelength range can be achieved through the use of a second outer cladding forming a W-type index profile. We derive simple design rules for dispersion controlled fibers, based on which an algorithm for the automatic dispersion optimization is proposed, implemented and used to design various nonlinear fibers for all-optical processing and supercontinuum generation. Fabrication of a lead silicate fiber with flattened dispersion at telecoms wavelengths confirms the potential of these new fibers.
1094-4087
66-80
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Feng, Xian
b1a28be8-c603-4239-9c93-b2c14274e9c7
Ponzo, Giorgio M.
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Petrovich, Marco N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Loh, Wei H.
2b7c57fe-000d-4405-a529-810597317ea8
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Feng, Xian
b1a28be8-c603-4239-9c93-b2c14274e9c7
Ponzo, Giorgio M.
e7372ff3-2a13-4c3a-85d8-a0c9be9df87c
Petrovich, Marco N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Loh, Wei H.
2b7c57fe-000d-4405-a529-810597317ea8
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Poletti, Francesco, Feng, Xian, Ponzo, Giorgio M., Petrovich, Marco N., Loh, Wei H. and Richardson, David J. (2011) All-solid highly nonlinear singlemode fibers with a tailored dispersion profile. Optics Express, 19 (1), 66-80. (doi:10.1364/OE.19.000066).

Record type: Article

Abstract

We investigate a novel approach to obtain highly nonlinear fibers with a tailored group velocity dispersion around a desired wavelength region of interest. Rather than exploiting longitudinal holes to control the average refractive index of the cladding and hence the fiber's waveguide dispersion, as in holey fibers, we propose using an all-solid cladding with a suitably chosen refractive index difference relative to the core. We demonstrate numerically that this solution allows a large freedom in the manipulation of the overall fiber dispersive properties, while enabling, in practice, a much more accurate control of the fiber's structural properties during fabrication. Effectively single mode guidance over a broad wavelength range can be achieved through the use of a second outer cladding forming a W-type index profile. We derive simple design rules for dispersion controlled fibers, based on which an algorithm for the automatic dispersion optimization is proposed, implemented and used to design various nonlinear fibers for all-optical processing and supercontinuum generation. Fabrication of a lead silicate fiber with flattened dispersion at telecoms wavelengths confirms the potential of these new fibers.

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Published date: January 2011
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 180957
URI: https://eprints.soton.ac.uk/id/eprint/180957
ISSN: 1094-4087
PURE UUID: bcd76463-a463-4702-9473-2ca62d2b8724
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083
ORCID for Marco N. Petrovich: ORCID iD orcid.org/0000-0002-3905-5901
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 13 Apr 2011 14:17
Last modified: 26 Nov 2019 02:05

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