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Thermally diffused waveguides in YVO4

Thermally diffused waveguides in YVO4
Thermally diffused waveguides in YVO4
Lasers based on planar optical waveguides have recently generated interest for use as high-average-power sources, due to a combination of attractive features including high optical gain, good thermal-power handling and compatibility with the geometry of high-power diode pump sources [1,2]. However, high-power diode pumping of monolithic plane-plane waveguide cavities generally leads to multi-mode output. One possible route to controlling the spatial output of such devices is through the use of tapered waveguides [3]. For devices of a few centimetres in length, adiabatic expansion can be achieved up to widths of a few hundred microns. This leads to structures compatible with end-pumping by broad-stripe diodes or, for higher power, side-pumping by diode bars. The latter route requires a very strong absorption of the diode emission, as the absorbing length is only a few hundred microns. Thus we have investigated thermal diffusion in YVO4 as a potential waveguide fabrication technique that is compatible with the patterning required for tapered waveguides.
Hettrick, Simon
9eef9cf0-86e8-4562-bead-684915a1de5c
Wilkinson, J.S.
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Shepherd, David
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Hettrick, Simon
9eef9cf0-86e8-4562-bead-684915a1de5c
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Shepherd, David
9fdd51c4-39d6-41b3-9021-4c033c2f4ead

Hettrick, Simon, Wilkinson, J.S. and Shepherd, David (2001) Thermally diffused waveguides in YVO4. QEP-15: 15th Biennial Meeting of the Institute of Physics Quantum Electronics and Photonics Group, Glasgow, United Kingdom. 02 - 05 Sep 2001.

Record type: Conference or Workshop Item (Paper)

Abstract

Lasers based on planar optical waveguides have recently generated interest for use as high-average-power sources, due to a combination of attractive features including high optical gain, good thermal-power handling and compatibility with the geometry of high-power diode pump sources [1,2]. However, high-power diode pumping of monolithic plane-plane waveguide cavities generally leads to multi-mode output. One possible route to controlling the spatial output of such devices is through the use of tapered waveguides [3]. For devices of a few centimetres in length, adiabatic expansion can be achieved up to widths of a few hundred microns. This leads to structures compatible with end-pumping by broad-stripe diodes or, for higher power, side-pumping by diode bars. The latter route requires a very strong absorption of the diode emission, as the absorbing length is only a few hundred microns. Thus we have investigated thermal diffusion in YVO4 as a potential waveguide fabrication technique that is compatible with the patterning required for tapered waveguides.

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Published date: 2001
Venue - Dates: QEP-15: 15th Biennial Meeting of the Institute of Physics Quantum Electronics and Photonics Group, Glasgow, United Kingdom, 2001-09-02 - 2001-09-05
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 268133
URI: http://eprints.soton.ac.uk/id/eprint/268133
PURE UUID: 9fc4d5af-0e13-437f-b008-ec3479eb6559
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697
ORCID for David Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

Catalogue record

Date deposited: 27 Oct 2009 11:06
Last modified: 18 Feb 2021 16:37

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