The University of Southampton
University of Southampton Institutional Repository

Fiber-integrated phase-change reconfigurable optical attenuator

Fiber-integrated phase-change reconfigurable optical attenuator
Fiber-integrated phase-change reconfigurable optical attenuator
We report on the experimental demonstration of an optical-fiber-integrated, non-volatile transmission switching device. The operating mechanism exploits a cavity resonance spectral shift associated with an induced change in the refractive index of a high-index thin film on the polished side facet of the fiber. In the present case, a thermally-induced amorphous-crystalline structural transition in a 500 nm layer of germanium antimony telluride at a distance of 500 nm from the core-cladding interface of an SMF-28 single-mode fiber delivers resonant transmission contrast >0.5 dB/mm at 1315nm. Contrast is a function of active layer proximity to the core, while operating wavelength is determined by layer thickness-varying thickness by a few tens of nanometers can provide for tuning over the entire near-infrared telecoms spectral range.
2378-0967
1-6
Martins, Tiago
826b0b69-90f5-4d40-84b7-f661628dbf66
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Piccinotti, Davide
15c6d296-3464-43ec-943a-8155e66d2a51
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Frazão, Orlando
d54dca12-baf0-44c6-b218-cc9c73fe7d76
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Martins, Tiago
826b0b69-90f5-4d40-84b7-f661628dbf66
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Piccinotti, Davide
15c6d296-3464-43ec-943a-8155e66d2a51
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Frazão, Orlando
d54dca12-baf0-44c6-b218-cc9c73fe7d76
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Martins, Tiago, Gholipour, Behrad, Piccinotti, Davide, MacDonald, Kevin F., Peacock, Anna, Frazão, Orlando and Zheludev, Nikolai (2019) Fiber-integrated phase-change reconfigurable optical attenuator. APL Photonics, 4, 1-6. (doi:10.1063/1.5116000).

Record type: Article

Abstract

We report on the experimental demonstration of an optical-fiber-integrated, non-volatile transmission switching device. The operating mechanism exploits a cavity resonance spectral shift associated with an induced change in the refractive index of a high-index thin film on the polished side facet of the fiber. In the present case, a thermally-induced amorphous-crystalline structural transition in a 500 nm layer of germanium antimony telluride at a distance of 500 nm from the core-cladding interface of an SMF-28 single-mode fiber delivers resonant transmission contrast >0.5 dB/mm at 1315nm. Contrast is a function of active layer proximity to the core, while operating wavelength is determined by layer thickness-varying thickness by a few tens of nanometers can provide for tuning over the entire near-infrared telecoms spectral range.

Text
GST-on-fibre optical switch - accepted manuscript - Accepted Manuscript
Restricted to Repository staff only until 17 January 2020.
Request a copy
Text
1.5116000 - Version of Record
Available under License Creative Commons Attribution.
Download (2MB)

More information

Accepted/In Press date: 9 October 2019
e-pub ahead of print date: 1 November 2019
Published date: November 2019

Identifiers

Local EPrints ID: 435243
URI: https://eprints.soton.ac.uk/id/eprint/435243
ISSN: 2378-0967
PURE UUID: 247b4eda-f05a-4c1b-9a69-25fa6926ca29
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for Anna Peacock: ORCID iD orcid.org/0000-0002-1940-7172
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 28 Oct 2019 17:30
Last modified: 28 Nov 2019 01:39

Export record

Altmetrics

Contributors

Author: Tiago Martins
Author: Behrad Gholipour
Author: Anna Peacock ORCID iD
Author: Orlando Frazão

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×