The University of Southampton
University of Southampton Institutional Repository

Optical gain in dye-doped polymer waveguides using oxidized porous silicon cladding

Optical gain in dye-doped polymer waveguides using oxidized porous silicon cladding
Optical gain in dye-doped polymer waveguides using oxidized porous silicon cladding
We report on a novel organic/inorganic hybrid waveguide approach, which is composed of a cladding of extremely low refractive index oxidized porous silicon formed on a bulk silicon substrate and of it, a polymeric (polymethylmethacrylate) core doped with a visible laser dye (Nile-Blue) was deposited by spin coating. The waveguiding properties of the structures have been characterised by means of the m-line technique, demonstrating that the use of oxidized porous silicon as a cladding can considerably improve the mode confinement factor of single-mode waveguides. The low refractive index achievable in the cladding (n=1.16) allows forming waveguides with a low index polymer cores. Variable stripe length (VSL) measurements have been also performed in order to characterise the amplification properties of the waveguides. We demonstrate a clear transition from losses to gain at 694nm with a pump threshold of 28mJ/cm2. Values of net optical gain up to 104dB/cm have been measured at this wavelength.
Navarro-Urrios, Daniel
3a5f28c0-b2ba-4eff-8a64-d257ef2c198c
Ghulinyan, Mher
81344f5a-1312-4007-ba35-bcb7d161be7c
Bettotti, Paolo
1c32f61c-7775-4331-89e3-0b5f66fb6481
Capuj, Néstor
73e065ec-2fbc-48fb-aff0-71c63c0ed4bf
Oton, Claudio J.
7e0803bc-34e4-4c6d-8f27-1204ef1775da
Lahoz, Fernando
6f99ff10-63e7-4222-8814-d7064381800f
Martin, Inocencio R.
f463b213-1265-47e3-a249-1fcc354e1200
Pavesi, L.
b8e21823-8e24-46bc-a740-88f10f4cae5b
Navarro-Urrios, Daniel
3a5f28c0-b2ba-4eff-8a64-d257ef2c198c
Ghulinyan, Mher
81344f5a-1312-4007-ba35-bcb7d161be7c
Bettotti, Paolo
1c32f61c-7775-4331-89e3-0b5f66fb6481
Capuj, Néstor
73e065ec-2fbc-48fb-aff0-71c63c0ed4bf
Oton, Claudio J.
7e0803bc-34e4-4c6d-8f27-1204ef1775da
Lahoz, Fernando
6f99ff10-63e7-4222-8814-d7064381800f
Martin, Inocencio R.
f463b213-1265-47e3-a249-1fcc354e1200
Pavesi, L.
b8e21823-8e24-46bc-a740-88f10f4cae5b

Navarro-Urrios, Daniel, Ghulinyan, Mher, Bettotti, Paolo, Capuj, Néstor, Oton, Claudio J., Lahoz, Fernando, Martin, Inocencio R. and Pavesi, L. (2007) Optical gain in dye-doped polymer waveguides using oxidized porous silicon cladding. Microtechnologies for the New Millennium: SPIE 6593, , Maspalomas, Gran Canaria, Spain. 02 - 04 May 2007. 8 pp . (doi:10.1117/12.721400).

Record type: Conference or Workshop Item (Paper)

Abstract

We report on a novel organic/inorganic hybrid waveguide approach, which is composed of a cladding of extremely low refractive index oxidized porous silicon formed on a bulk silicon substrate and of it, a polymeric (polymethylmethacrylate) core doped with a visible laser dye (Nile-Blue) was deposited by spin coating. The waveguiding properties of the structures have been characterised by means of the m-line technique, demonstrating that the use of oxidized porous silicon as a cladding can considerably improve the mode confinement factor of single-mode waveguides. The low refractive index achievable in the cladding (n=1.16) allows forming waveguides with a low index polymer cores. Variable stripe length (VSL) measurements have been also performed in order to characterise the amplification properties of the waveguides. We demonstrate a clear transition from losses to gain at 694nm with a pump threshold of 28mJ/cm2. Values of net optical gain up to 104dB/cm have been measured at this wavelength.

This record has no associated files available for download.

More information

Published date: 12 June 2007
Venue - Dates: Microtechnologies for the New Millennium: SPIE 6593, , Maspalomas, Gran Canaria, Spain, 2007-05-02 - 2007-05-04

Identifiers

Local EPrints ID: 443340
URI: http://eprints.soton.ac.uk/id/eprint/443340
PURE UUID: 3b86762f-250d-485b-9eb2-1d513e5ba0f6

Catalogue record

Date deposited: 20 Aug 2020 16:36
Last modified: 16 Mar 2024 09:00

Export record

Altmetrics

Contributors

Author: Daniel Navarro-Urrios
Author: Mher Ghulinyan
Author: Paolo Bettotti
Author: Néstor Capuj
Author: Claudio J. Oton
Author: Fernando Lahoz
Author: Inocencio R. Martin
Author: L. Pavesi

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 http://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.

×