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Thermally diffused waveguides in YVO4

Hettrick, Simon, Wilkinson, J.S. and Shepherd, David (2001) Thermally diffused waveguides in YVO4 At QEP-15: 15th Biennial Meeting of the Institute of Physics Quantum Electronics and Photonics Group, United Kingdom. 03 - 06 Sep 2001.

Record type: Conference or Workshop Item (Paper)


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, United Kingdom, 2001-09-03 - 2001-09-06
Organisations: Optoelectronics Research Centre


Local EPrints ID: 268133
PURE UUID: 9fc4d5af-0e13-437f-b008-ec3479eb6559
ORCID for J.S. Wilkinson: ORCID iD
ORCID for David Shepherd: ORCID iD

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Date deposited: 27 Oct 2009 11:06
Last modified: 18 Jul 2017 06:56

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Author: Simon Hettrick
Author: J.S. Wilkinson ORCID iD
Author: David Shepherd ORCID iD

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