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Silicon erasable waveguides and directional couplers by germanium ion implantation for configurable photonic circuits

Silicon erasable waveguides and directional couplers by germanium ion implantation for configurable photonic circuits
Silicon erasable waveguides and directional couplers by germanium ion implantation for configurable photonic circuits
A novel technique for realization of configurable/one-time programmable (OTP) silicon photonic circuits is presented. Once the proposed photonic circuit is programmed, its signal routing is retained without the need for additional power consumption. This technology can potentially enable a multi-purpose design of photonic chips for a range of different applications and performance requirements, as it can be programmed for each specific application after chip fabrication. Therefore, the production costs per chip can be reduced because of the increase in production volume, and rapid prototyping of new photonic circuits is enabled. Essential building blocks for the configurable circuits in the form of erasable directional couplers (DCs) were designed and fabricated, using ion implanted waveguides. We demonstrate permanent switching of optical signals between the drop port and through port of the DCs using a localized post-fabrication laser annealing process. Proof-of-principle demonstrators in the form of generic 1×4 and 2×2 programmable switching circuits were fabricated and subsequently programmed.
Silicon photonics, Programmable circuits, Photonic swicth
1094-4087
Chen, Xia
64f6ab92-ca11-4489-8c03-52bc986209ae
Milošević, Milan
b28da945-84a5-4317-8896-6d9ea6a69589
Runge, Antoine
24fd1d59-5328-4201-8eb3-172f237563fa
Yu, Xingshi
7fb4e039-1fb0-4c2e-8567-43e97e77c997
Khokhar, Ali Z
2eedd1cc-8ac5-4f8e-be25-930bd3eae396
Mailis, Sakellaris
9fcc2cc8-9c00-452e-b785-a20263cfb33b
Thomson, David
17c1626c-2422-42c6-98e0-586ae220bcda
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Saito, Shinichi
14a5d20b-055e-4f48-9dda-267e88bd3fdc
Reed, Graham
ca08dd60-c072-4d7d-b254-75714d570139
Chen, Xia
64f6ab92-ca11-4489-8c03-52bc986209ae
Milošević, Milan
b28da945-84a5-4317-8896-6d9ea6a69589
Runge, Antoine
24fd1d59-5328-4201-8eb3-172f237563fa
Yu, Xingshi
7fb4e039-1fb0-4c2e-8567-43e97e77c997
Khokhar, Ali Z
2eedd1cc-8ac5-4f8e-be25-930bd3eae396
Mailis, Sakellaris
9fcc2cc8-9c00-452e-b785-a20263cfb33b
Thomson, David
17c1626c-2422-42c6-98e0-586ae220bcda
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Saito, Shinichi
14a5d20b-055e-4f48-9dda-267e88bd3fdc
Reed, Graham
ca08dd60-c072-4d7d-b254-75714d570139

Chen, Xia, Milošević, Milan, Runge, Antoine, Yu, Xingshi, Khokhar, Ali Z, Mailis, Sakellaris, Thomson, David, Peacock, Anna, Saito, Shinichi and Reed, Graham (2020) Silicon erasable waveguides and directional couplers by germanium ion implantation for configurable photonic circuits. Optics Express. (In Press)

Record type: Article

Abstract

A novel technique for realization of configurable/one-time programmable (OTP) silicon photonic circuits is presented. Once the proposed photonic circuit is programmed, its signal routing is retained without the need for additional power consumption. This technology can potentially enable a multi-purpose design of photonic chips for a range of different applications and performance requirements, as it can be programmed for each specific application after chip fabrication. Therefore, the production costs per chip can be reduced because of the increase in production volume, and rapid prototyping of new photonic circuits is enabled. Essential building blocks for the configurable circuits in the form of erasable directional couplers (DCs) were designed and fabricated, using ion implanted waveguides. We demonstrate permanent switching of optical signals between the drop port and through port of the DCs using a localized post-fabrication laser annealing process. Proof-of-principle demonstrators in the form of generic 1×4 and 2×2 programmable switching circuits were fabricated and subsequently programmed.

Text
OE_Erasbale_DC_silicon_2020_v7 - Accepted Manuscript
Available under License Creative Commons Attribution.
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More information

Accepted/In Press date: 8 May 2020
Keywords: Silicon photonics, Programmable circuits, Photonic swicth

Identifiers

Local EPrints ID: 440812
URI: http://eprints.soton.ac.uk/id/eprint/440812
ISSN: 1094-4087
PURE UUID: f115e439-35c2-4883-8788-a250b8b1e006
ORCID for Xia Chen: ORCID iD orcid.org/0000-0002-0994-5401
ORCID for Anna Peacock: ORCID iD orcid.org/0000-0002-1940-7172
ORCID for Shinichi Saito: ORCID iD orcid.org/0000-0003-1539-1182

Catalogue record

Date deposited: 19 May 2020 17:02
Last modified: 07 Oct 2020 02:02

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Contributors

Author: Xia Chen ORCID iD
Author: Antoine Runge
Author: Xingshi Yu
Author: Ali Z Khokhar
Author: Sakellaris Mailis
Author: David Thomson
Author: Anna Peacock ORCID iD
Author: Shinichi Saito ORCID iD
Author: Graham Reed

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