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Inverse scattering designs of dispersion-engineered planar waveguides

Inverse scattering designs of dispersion-engineered planar waveguides
Inverse scattering designs of dispersion-engineered planar waveguides
We have introduced a semi-analytical IS technique suitable for multipole, rational function reflection coefficients, and used it for the design of dispersion-engineered planar waveguides. The technique is used to derive extensive dispersion maps, including higher dispersion coefficients, corresponding to three-, five- and seven-pole reflection coefficients. It is shown that common features of dispersion-engineered waveguides such as refractive-index trenches, rings and oscillations come naturally from this approach when the magnitude of leaky poles in increased. Increasing the number of poles is shown to offer a small but measureable change in higher order dispersion with designs dominated by a three pole design with a leaky pole pair of the smallest modulus.
1094-4087
3142-3155
May, Alexander R.
2a3c9134-7bdb-4b34-a939-ed625245a186
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Zervas, Michalis N.
1840a474-dd50-4a55-ab74-6f086aa3f701
May, Alexander R.
2a3c9134-7bdb-4b34-a939-ed625245a186
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Zervas, Michalis N.
1840a474-dd50-4a55-ab74-6f086aa3f701

May, Alexander R., Poletti, Francesco and Zervas, Michalis N. (2015) Inverse scattering designs of dispersion-engineered planar waveguides. Optics Express, 23 (3), 3142-3155. (doi:10.1364/OE.23.003142).

Record type: Article

Abstract

We have introduced a semi-analytical IS technique suitable for multipole, rational function reflection coefficients, and used it for the design of dispersion-engineered planar waveguides. The technique is used to derive extensive dispersion maps, including higher dispersion coefficients, corresponding to three-, five- and seven-pole reflection coefficients. It is shown that common features of dispersion-engineered waveguides such as refractive-index trenches, rings and oscillations come naturally from this approach when the magnitude of leaky poles in increased. Increasing the number of poles is shown to offer a small but measureable change in higher order dispersion with designs dominated by a three pole design with a leaky pole pair of the smallest modulus.

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Accepted/In Press date: 18 January 2015
Published date: 9 February 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 374370
URI: https://eprints.soton.ac.uk/id/eprint/374370
ISSN: 1094-4087
PURE UUID: 473b3808-4f7f-4bb6-8670-9767ced19cce
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083
ORCID for Michalis N. Zervas: ORCID iD orcid.org/0000-0002-0651-4059

Catalogue record

Date deposited: 16 Feb 2015 11:02
Last modified: 03 Dec 2019 02:04

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