Projects per year
Abstract
Numerous applications would benefit from a compact laser source with tunable, continuous-wave emission in the deep ultraviolet (wavelengths <250nm); however, very few laser sources have been demonstrated with direct emission in this spectral region and options are generally limited to pulsed, fixed wavelength sources or complex and impractical setups for nonlinear frequency mixing of the emission of several infrared lasers in various external enhancement cavities. Here we propose an all-solid-state, continuous-wave, tunable laser with emission between 224 nm and 226 nm via intracavity frequency tripling in an AlGaInP-based semiconductor disk laser (SDL). Output power up to 78 µW is achieved in CW operation, with a tuning range over 350 cm-1. AlGaInP-based SDLs may be designed to emit anywhere between ~640 – 690 nm such that wavelengths between 213 nm and 230 nm may be targeted for specific applications using a similar set-up. An in-depth study of the nonlinear conversion has been carried out to understand the limitations of the set-up, namely large walk-off angles for phase-matching in the nonlinear crystals, and the potential for increasing the output power to several milli-Watts. This is, to the authors' knowledge, the first implementation of intracavity frequency tripling in a visible SDL and the shortest wavelength emitted from an SDL system.
Original language | English |
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Article number | 5100608 |
Number of pages | 8 |
Journal | IEEE Journal of Selected Topics in Quantum Electronics |
Volume | 23 |
Issue number | 6 |
Early online date | 24 Apr 2017 |
DOIs | |
Publication status | E-pub ahead of print - 24 Apr 2017 |
Keywords
- semiconductor lasers
- surface emitting lasers
- ultraviolet sources
- continuous wave
- tunable
- frequency conversion
- harmonic generation
- nonlinear optics
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Projects
- 3 Finished
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EPSRC Doctoral Training Grant - DTA, University of Strathclyde | Rodriguez-Garcia, Julio
Hastie, J., Kemp, A. & Rodriguez-Garcia, J.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/13 → 6/08/18
Project: Research Studentship - Internally Allocated
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Fraunhofer UK Research Limited: Studentship Agreement | Rodriguez-Garcia, Julio
Hastie, J., Kemp, A. & Rodriguez-Garcia, J.
1/10/13 → 6/08/18
Project: Research Studentship - Internally Allocated
Datasets
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Data for: "Tunable, CW Laser Emission at 225 nm via Intracavity Frequency Tripling in a Semiconductor Disk Laser"
Rodríguez-García, J. (Creator), Paboeuf, D. (Contributor) & Hastie, J. (Supervisor), University of Strathclyde, 27 Apr 2017
DOI: 10.15129/dc8f4692-d009-4a27-9cf4-fb9f2b9381f9
Dataset