Abstract
A comparison of the wavelength shift of the vertical external-cavity surface-emitting laser (VECSEL) spectrum with increasing pump power reveals silicon carbide to be a far superior heat spreader material to previously used sapphire. We have demonstrated 0.5W with no rollover from a GaAs VECSEL by utilising an intra-cavity silicon carbide heat spreader. We believe that with increased pump power, the use of silicon carbide heat spreaders will provide a useful expedient to extend the available output power of VECSEL systems.
Original language | English |
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Title of host publication | Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE |
Place of Publication | Piscataway, N.J. |
Publisher | IEEE |
Pages | 329-330 |
Number of pages | 1 |
Volume | 1 |
ISBN (Print) | 0780375009 |
DOIs | |
Publication status | Published - 6 Jan 2003 |
Keywords
- III-V semiconductors
- aluminium compounds
- gallium arsenide
- laser accessories
- laser cavity resonators
- laser transitions
- optical pumping
- quantum well lasers
- surface emitting lasers
- GaAs
- SiC
- VECSEL
- available output power
- heat spreader material
- intra-cavity silicon carbide heat spreader
- pump power silicon carbide
- vertical external-cavity surface-emitting laser spectrum
- wavelength shift
- AlxGa1-xAs