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Proceedings Paper

Development of high-purity optical grade single-crystal CVD diamond for intracavity cooling
Author(s): Andrew M. Bennett; Benjamin J. Wickham; Harpreet K. Dhillon; Ying Chen; Scott Webster; Giorgio Turri; Michael Bass
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Paper Abstract

Microwave assisted chemical vapour deposited bulk diamond products have been used in a range of high power laser systems, due to low absorption across a range of wavelengths and exceptional thermal properties. However the application of polycrystalline products has frequently been limited to applications at longer wavelengths or thermal uses outside of the optical path due to the birefringence and scatter that are intrinsic properties of the polycrystalline materials. However, there are some solid state structures, including thin disc gain modules and amplifiers, that will gain significantly in terms of potential output powers if diamond could be used as a heat spreader in the optical path as well as a heat spreader on the rear surface of the disk. Therefore single crystal grades of diamond have been developed that overcome the limitations of the polycrystalline material, with low absorption, low scatter and low birefringence grades for demanding optical applications. We will present new data, characterising the performance of these materials across infra-red and visible wavelengths with absorption coefficient measured by laser calorimetry at a range of wavelengths from 1064 nm to 452 nm.

Paper Details

Date Published: 28 February 2014
PDF: 8 pages
Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 89590R (28 February 2014); doi: 10.1117/12.2037811
Show Author Affiliations
Andrew M. Bennett, Element Six Ltd. (United Kingdom)
Benjamin J. Wickham, Element Six Ltd. (United Kingdom)
Harpreet K. Dhillon, Element Six Ltd. (United Kingdom)
Ying Chen, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Scott Webster, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Giorgio Turri, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Michael Bass, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 8959:
Solid State Lasers XXIII: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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