Compact and Efficient Green VECSEL Based on Novel Optical End-Pumping Scheme

Compact and Efficient Green VECSEL Based on Novel Optical End-Pumping Scheme

We propose a novel lens-less optical end-pumping scheme and report on the development of a highly efficient and compact green vertical-external-cavity surface-emitting laser (VECSEL). A constant-wave pump-power-limited maximum green output power of 1.1 W and an optical-to-optical conversion efficien...

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Veröffentlicht in:IEEE photonics technology letters 2007-09, Vol.19 (17), p.1325-1327
Hauptverfasser: Cho, Soohaeng, Kim, Gi Bum, Kim, Jun-Youn, Kim, Ki-Sung, Lee, Sang-Moon, Yoo, Jaeryung, Kim, Taek, Park, Yongjo
Format: Artikel
Sprache:eng
Schlagworte:
Beams (radiation)
Clean energy
Conversion
End-pumped scheme
Focusing
Frequency conversion
Gallium arsenide
heat spreader
high output power
Laser beams
Laser diodes
Laser excitation
Optical harmonic generation
Optical pumping
Photonics
Power generation
Pump lasers
Pumps
Surface emitting lasers
Vertical cavity surface emitting lasers
vertical-external-cavity surface- emitting laser (VECSEL)
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Zusammenfassung:We propose a novel lens-less optical end-pumping scheme and report on the development of a highly efficient and compact green vertical-external-cavity surface-emitting laser (VECSEL). A constant-wave pump-power-limited maximum green output power of 1.1 W and an optical-to-optical conversion efficiency of as high as ~15.7% (=1.1 W/7 W) were achieved using a single chip pump laser diode placed directly behind the VECSEL structure without any beam focusing and shaping optical elements.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.902914