The University of Southampton
University of Southampton Institutional Repository

High index contrast Er:Ta2O5 waveguide amplifier on oxidised silicon

Subramanian, Ananth Z., Murugan, G.Senthil, Zervas, Michalis N. and Wilkinson, James S. (2012) High index contrast Er:Ta2O5 waveguide amplifier on oxidised silicon Optics Communications, 285, (2), pp. 124-127.

Record type: Article


We report a high index contrast erbium doped tantalum pentoxide waveguide amplifier. 2.3 cm long waveguides with erbium concentration of 2.7 × 1020 cm^-3 were fabricated by magnetron sputtering of Er-doped tantalum pentoxide on oxidised silicon substrates and Ar-ion milling with photolithographically defined mask. A net on-chip optical gain of ~2.25 dB/cm at 1531.5 nm was achieved with 20mW of pump power at 977 nm launched into the waveguide. The pump threshold for transparency was 4.5mW.

Full text not available from this repository.

More information

e-pub ahead of print date: 28 September 2011
Published date: 15 January 2012
Keywords: erbium doped waveguide amplifier, tantalum pentoxide, optical amplifier, high index contrast, integrated optics, Erbium
Organisations: Optoelectronics Research Centre


Local EPrints ID: 205577
ISSN: 0030-4018
PURE UUID: 7f8ecb62-ac4d-472f-afe8-493085bc02cf
ORCID for G.Senthil Murugan: ORCID iD
ORCID for James S. Wilkinson: ORCID iD

Catalogue record

Date deposited: 12 Dec 2011 15:16
Last modified: 01 Oct 2017 12:40

Export record


Author: Ananth Z. Subramanian
Author: Michalis N. Zervas

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 supports OAI 2.0 with a base URL of

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.