The University of Southampton
University of Southampton Institutional Repository

Growth by liquid phase epitaxy and low threshold laser oscillation at 2.012µm of a Tm:YAG waveguide laser

Borel, C., Rameix, A., Thony, Ph., Ferrand, B., Shepherd, D.P., Large, A.C., Warburton, T.J., Tropper, A.C. and Hanna, D.C. (1995) Growth by liquid phase epitaxy and low threshold laser oscillation at 2.012µm of a Tm:YAG waveguide laser At Photonics West '95, United States. 04 - 10 Feb 1995. (doi:10.1117/12.206948).

Record type: Conference or Workshop Item (Paper)


We report the growth by liquid phase epitaxy and laser operation at 2.012 micrometers of Tm:YAG planar waveguides with various concentrations (4 to 10 at %), lengths (3,4 mm) and active layer thicknesses (8 to 30 micrometers ). The pumping source was 1 W GaAlAs SDL diode emitting at 785 nm and the cavity consisted of 2 plane mirrors butted to the waveguide endfaces. Initial results have been obtained with a 6% doped, 4 mm long and 14.6 micrometers thick, Tm:YAG epilayer: Thresholds occurred at respectively 60 mW and 300 mW of incident power (48 mW and 136 mW of absorbed power taking in account pump feedback by the output couplers) for output mirrors transmissions of 2% and 12% respectively. Slope efficiencies of 32% and 48% with respect to absorbed power have been achieved with these output transmissions. With Ti:sapphire pumping an using 1.8% output coupling, laser threshold as low as approximately equals 10 mW and slop efficiencies of approximately equals 30% have been obtained in a range of different Tm:YAG waveguides. This performance is comparable to the best results published until now for bulk crystals.

Full text not available from this repository.

More information

Published date: February 1995
Venue - Dates: Photonics West '95, United States, 1995-02-04 - 1995-02-10


Local EPrints ID: 77064
PURE UUID: e858b1e9-9ceb-4ac3-ba37-6d509b0ea7c4
ORCID for D.P. Shepherd: ORCID iD

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:34

Export record



Author: C. Borel
Author: A. Rameix
Author: Ph. Thony
Author: B. Ferrand
Author: D.P. Shepherd ORCID iD
Author: A.C. Large
Author: T.J. Warburton
Author: A.C. Tropper
Author: D.C. Hanna

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.