Low-loss wavelength-selective integrated waveguide coupler based on tilted Bragg gratings
Low-loss wavelength-selective integrated waveguide coupler based on tilted Bragg gratings
We propose and investigate numerically a new kind of integrated optical waveguide coupler. Two waveguides with tilted Bragg gratings couple selectively to a discrete counter-propagating cladding mode which acts as an intermediary to transfer power between the waveguides. This gives a highly versatile platform that can act as a low-loss coupler with arbitrary coupling ratio between 0 and 100%, as a narrowbandwidth wavelength filter, and as a phase-selective switch that transmits two light waves of a fixed relative phase but reflects the orthogonal phase within a single device.
1783-1791
Weisen, Mathias J.
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Posner, Matthew T.
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Gates, James C.
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Gawith, Corin B.E.
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Smith, Peter G.R.
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Horak, Peter
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11 June 2019
Weisen, Mathias J.
6a6bd787-56ac-4902-80c4-b9e251338824
Posner, Matthew T.
5cd0008f-f5bc-41ff-b51d-0187af17acff
Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Weisen, Mathias J., Posner, Matthew T., Gates, James C., Gawith, Corin B.E., Smith, Peter G.R. and Horak, Peter
(2019)
Low-loss wavelength-selective integrated waveguide coupler based on tilted Bragg gratings.
Journal of the Optical Society of America B, 36 (7), .
(doi:10.1364/JOSAB.36.001783).
Abstract
We propose and investigate numerically a new kind of integrated optical waveguide coupler. Two waveguides with tilted Bragg gratings couple selectively to a discrete counter-propagating cladding mode which acts as an intermediary to transfer power between the waveguides. This gives a highly versatile platform that can act as a low-loss coupler with arbitrary coupling ratio between 0 and 100%, as a narrowbandwidth wavelength filter, and as a phase-selective switch that transmits two light waves of a fixed relative phase but reflects the orthogonal phase within a single device.
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Accepted/In Press date: 23 May 2019
e-pub ahead of print date: 24 May 2019
Published date: 11 June 2019
Identifiers
Local EPrints ID: 431402
URI: https://eprints.soton.ac.uk/id/eprint/431402
ISSN: 0740-3224
PURE UUID: 4cf90f55-d777-4c2e-afc1-b3d0e9b57f18
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Date deposited: 31 May 2019 16:30
Last modified: 29 Aug 2019 00:56
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Author:
Matthew T. Posner
University divisions
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