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Picosecond optically reconfigurable filters exploiting full free spectral range tuning of single ring and Vernier effect resonators

Picosecond optically reconfigurable filters exploiting full free spectral range tuning of single ring and Vernier effect resonators
Picosecond optically reconfigurable filters exploiting full free spectral range tuning of single ring and Vernier effect resonators
We demonstrate that phase shifts larger than 2 pi can be induced by all-optical tuning in silicon waveguides of a few micrometers in length. By generating high concentrations of free carriers in the silicon employing absorption of ultrashort, ultraviolet laser pulses, the refractive index of silicon can be drastically reduced. As a result, the resonance wavelength of optical resonators can be freely tuned over the full free spectral range. This allows for active integrated optic devices that can be switched with GHz frequencies into any desired state by all-optical means.
1094-4087
12468-12477
Bruck, Roman
6c0a8401-0a93-4497-bd42-665e5530cfcf
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Thomson, D.J.
17c1626c-2422-42c6-98e0-586ae220bcda
Troia, Benedetto
e90140d1-2449-4ca0-b2d4-aac7a1464c5c
Passaro, Vittorio
b6aa081c-aabb-4897-8cc3-6f16a58d3d6d
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Bruck, Roman
6c0a8401-0a93-4497-bd42-665e5530cfcf
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Thomson, D.J.
17c1626c-2422-42c6-98e0-586ae220bcda
Troia, Benedetto
e90140d1-2449-4ca0-b2d4-aac7a1464c5c
Passaro, Vittorio
b6aa081c-aabb-4897-8cc3-6f16a58d3d6d
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9

Bruck, Roman, Mills, B., Thomson, D.J., Troia, Benedetto, Passaro, Vittorio, Mashanovich, Goran Z., Reed, G.T. and Muskens, Otto L. (2015) Picosecond optically reconfigurable filters exploiting full free spectral range tuning of single ring and Vernier effect resonators. Optics Express, 23 (9), 12468-12477. (doi:10.1364/OE.23.012468).

Record type: Article

Abstract

We demonstrate that phase shifts larger than 2 pi can be induced by all-optical tuning in silicon waveguides of a few micrometers in length. By generating high concentrations of free carriers in the silicon employing absorption of ultrashort, ultraviolet laser pulses, the refractive index of silicon can be drastically reduced. As a result, the resonance wavelength of optical resonators can be freely tuned over the full free spectral range. This allows for active integrated optic devices that can be switched with GHz frequencies into any desired state by all-optical means.

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Accepted/In Press date: 29 April 2015
Published date: 1 May 2015
Organisations: Optoelectronics Research Centre, Electronics & Computer Science, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 376885
URI: https://eprints.soton.ac.uk/id/eprint/376885
ISSN: 1094-4087
PURE UUID: 46ad3238-6d81-41b1-9359-05c37809081f
ORCID for B. Mills: ORCID iD orcid.org/0000-0002-1784-1012
ORCID for Otto L. Muskens: ORCID iD orcid.org/0000-0003-0693-5504

Catalogue record

Date deposited: 20 Jul 2015 13:00
Last modified: 20 Jul 2019 00:53

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Contributors

Author: Roman Bruck
Author: B. Mills ORCID iD
Author: D.J. Thomson
Author: Benedetto Troia
Author: Vittorio Passaro
Author: G.T. Reed
Author: Otto L. Muskens ORCID iD

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