Highly efficient optically pumped vertical-emitting semiconductor laser with more than 20 W average output power in a fundamental transverse mode

Highly efficient optically pumped vertical-emitting semiconductor laser with more than 20 W average output power in a fundamental transverse mode

We have demonstrated an optically pumped vertical-external-cavity surface-emitting laser (OP-VECSEL) generating more than 20 W of cw output power in a fundamental transverse mode (M2 approximately 1.1) at 960 nm. The laser is highly efficient with a slope efficiency of 49%, a pump threshold of 4.4 W...

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Veröffentlicht in:Optics letters 2008-11, Vol.33 (22), p.2719-2721
Hauptverfasser: RUDIN, B, RUTZ, A, HOFFINANN, M, MAAS, D. J. H. C, BELLANCOURT, A.-R, GINI, E, SÜDMEYER, T, KELLER, U
Format: Artikel
Sprache:eng
Schlagworte:
Beam characteristics: profile, intensity, and power
spatial pattern formation
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Optics
Physics
Semiconductor lasers
laser diodes
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Beschreibung
Zusammenfassung:We have demonstrated an optically pumped vertical-external-cavity surface-emitting laser (OP-VECSEL) generating more than 20 W of cw output power in a fundamental transverse mode (M2 approximately 1.1) at 960 nm. The laser is highly efficient with a slope efficiency of 49%, a pump threshold of 4.4 W, and an overall optical-to-optical efficiency of 43%.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.33.002719