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A Si Optical Modulator based on Fano-like Resonance

A Si Optical Modulator based on Fano-like Resonance
A Si Optical Modulator based on Fano-like Resonance
In this paper, we present an experimental demonstration of a Si optical modulator based on Fano-like resonance, which is the first of its kind in the literature. The Fano- like resonance is obtained through weak coupling between two optical resonators in the prototype device and a PN junction is designed for carrier-depletion type electro-refractive modulation. 20 Gb/s data rate on-off keying (OOK) is obtained experimentally on the prototype device. Compared with a ring resonator modulator with a similar optical resonance linewidth, a Fano-like resonance based modulator can potentially have a higher extinction ratio (ER) because the Fano-like resonance has an asymmetric spectrum line shape and the line shape on one side can be sharper than the Lorentz resonance line shape of a ring resonator.
1041-1135
Du, Han
f68d2391-e6fb-4fbc-bbe0-86ce9a871352
Zhang, Weiwei
1a783f97-c5ac-49e9-a5a0-49b8b2efab36
Cao, Wei
5202fa2b-a471-45d4-84e9-9104dffdbbfc
Thomson, David
17c1626c-2422-42c6-98e0-586ae220bcda
Littlejohns, Callum
d2837f04-0a83-4bf9-acb2-618aa42a0cad
Yan, Xingzhao
e1f3f636-74e4-42d5-81c7-04feec2b85ba
Tran, Denh
65bcfeb7-1864-4ad8-bdf3-71bd30006610
Banakar, Mehdi
ad56fc0a-728c-4abb-8be5-74318bb2758e
Reed, Graham
ca08dd60-c072-4d7d-b254-75714d570139
Du, Han
f68d2391-e6fb-4fbc-bbe0-86ce9a871352
Zhang, Weiwei
1a783f97-c5ac-49e9-a5a0-49b8b2efab36
Cao, Wei
5202fa2b-a471-45d4-84e9-9104dffdbbfc
Thomson, David
17c1626c-2422-42c6-98e0-586ae220bcda
Littlejohns, Callum
d2837f04-0a83-4bf9-acb2-618aa42a0cad
Yan, Xingzhao
e1f3f636-74e4-42d5-81c7-04feec2b85ba
Tran, Denh
65bcfeb7-1864-4ad8-bdf3-71bd30006610
Banakar, Mehdi
ad56fc0a-728c-4abb-8be5-74318bb2758e
Reed, Graham
ca08dd60-c072-4d7d-b254-75714d570139

Du, Han, Zhang, Weiwei, Cao, Wei, Thomson, David, Littlejohns, Callum, Yan, Xingzhao, Tran, Denh, Banakar, Mehdi and Reed, Graham (2021) A Si Optical Modulator based on Fano-like Resonance. IEEE Photonics Technology Letters. (In Press)

Record type: Article

Abstract

In this paper, we present an experimental demonstration of a Si optical modulator based on Fano-like resonance, which is the first of its kind in the literature. The Fano- like resonance is obtained through weak coupling between two optical resonators in the prototype device and a PN junction is designed for carrier-depletion type electro-refractive modulation. 20 Gb/s data rate on-off keying (OOK) is obtained experimentally on the prototype device. Compared with a ring resonator modulator with a similar optical resonance linewidth, a Fano-like resonance based modulator can potentially have a higher extinction ratio (ER) because the Fano-like resonance has an asymmetric spectrum line shape and the line shape on one side can be sharper than the Lorentz resonance line shape of a ring resonator.

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final manuscript - Accepted Manuscript
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More information

Accepted/In Press date: 18 September 2021
Additional Information: Funded by Wellcome Trust

Identifiers

Local EPrints ID: 451324
URI: http://eprints.soton.ac.uk/id/eprint/451324
ISSN: 1041-1135
PURE UUID: e1726277-10f3-4b1b-8d09-8f617ed90a8d
ORCID for Wei Cao: ORCID iD orcid.org/0000-0003-1431-7060

Catalogue record

Date deposited: 21 Sep 2021 16:30
Last modified: 16 Mar 2024 14:03

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Contributors

Author: Han Du
Author: Weiwei Zhang
Author: Wei Cao ORCID iD
Author: David Thomson
Author: Xingzhao Yan
Author: Denh Tran
Author: Mehdi Banakar
Author: Graham Reed

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