Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Array-format microchip semiconductor disk lasers

Laurand, N. and Lee, C.L. and Gu, E. and Hastie, J.E. and Kemp, A.J. and Calvez, S. and Dawson, M.D. (2008) Array-format microchip semiconductor disk lasers. IEEE Journal of Quantum Electronics, 44 (11). pp. 1096-1103. ISSN 0018-9197

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

We report a detailed study of an array-format 1.055- mum microchip semiconductor disk laser which uses a microlens-patterned diamond both as an array of stabilizing output coupling mirrors and a heatspreader. A thermal study of the devices, using a finite element analysis, is carried out and confirms the thermal management capabilities and power scalability of this microlensed diamond configuration. This design is then exploited to perform a systematic study on a set of microchip lasers having the same semiconductor structure but microlenses with differing characteristics. The transverse mode characteristics of individual semiconductor disk lasers are found to depend on the mode-matching condition and on the microlens aperture size. Mode-matched single-device emission in the fundamental mode (M2 ~ 1.1) with a pump-limited output power of 70 mW is demonstrated. The experimental measurement of the thermal resistance of the device is also shown to agree with the finite element analysis. Finally, array operation, while pumping with a single beam, is reported.