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Separation of Photonic Crystal Waveguides Modes using Femtosecond Time-of-Flight

Separation of Photonic Crystal Waveguides Modes using Femtosecond Time-of-Flight
Separation of Photonic Crystal Waveguides Modes using Femtosecond Time-of-Flight
We demonstrate that ultrabroadband ultrashort-pulse white light supercontinua can be used to track the group velocity of photons in optical waveguides using a Kerr gate technique. Results on silicon nitride slab waveguides show both polarization birefringence and multimode dispersion, which vanish at critical wavelengths. When photonic crystals are embedded in the waveguides, the higher order modes are excited within the band-gap region, demonstrating the need to control their dispersion to make effective use of photonic crystal waveguide devices.
0003-6951
3927-3929
Netti, M.C.
e565f0dc-9641-4f19-a536-f1c1f01ea0dd
Finlayson, C.E.
bcc6c2a7-e346-4b08-93e7-be12c7033dac
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Charlton, M.D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Zoorob, M.E.
01b3a61a-95c3-45d5-a06b-caa91c734cfd
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Parker, G.J.
edf88b88-ba05-48a5-8ae4-d6d6aa984364
Netti, M.C.
e565f0dc-9641-4f19-a536-f1c1f01ea0dd
Finlayson, C.E.
bcc6c2a7-e346-4b08-93e7-be12c7033dac
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Charlton, M.D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Zoorob, M.E.
01b3a61a-95c3-45d5-a06b-caa91c734cfd
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Parker, G.J.
edf88b88-ba05-48a5-8ae4-d6d6aa984364

Netti, M.C., Finlayson, C.E., Baumberg, J.J., Charlton, M.D.B., Zoorob, M.E., Wilkinson, J.S. and Parker, G.J. (2002) Separation of Photonic Crystal Waveguides Modes using Femtosecond Time-of-Flight. Applied Physics Letters, 81 (21), 3927-3929. (doi:10.1063/1.1520709).

Record type: Article

Abstract

We demonstrate that ultrabroadband ultrashort-pulse white light supercontinua can be used to track the group velocity of photons in optical waveguides using a Kerr gate technique. Results on silicon nitride slab waveguides show both polarization birefringence and multimode dispersion, which vanish at critical wavelengths. When photonic crystals are embedded in the waveguides, the higher order modes are excited within the band-gap region, demonstrating the need to control their dispersion to make effective use of photonic crystal waveguide devices.

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More information

Published date: 2002
Additional Information: Also published in the Virtual Journal of Ultrafast Science.
Organisations: Optoelectronics Research Centre, NANO

Identifiers

Local EPrints ID: 257617
URI: https://eprints.soton.ac.uk/id/eprint/257617
ISSN: 0003-6951
PURE UUID: feae01e4-b455-4497-9be2-6eeaeddb960d
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 17 Jun 2003
Last modified: 17 Sep 2019 01:11

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