Title :
Compact and Efficient Green VECSEL Based on Novel Optical End-Pumping Scheme
Author :
Cho, Soohaeng ; Kim, Gi Bum ; Kim, Jun-Youn ; Kim, Ki-Sung ; Lee, Sang-Moon ; Yoo, Jaeryung ; Kim, Taek ; Park, YongJo
Author_Institution :
Samsung Adv. Inst. of Technol., Gyeonggi-Do
Abstract :
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.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; optical frequency conversion; optical pumping; quantum well lasers; semiconductor quantum wells; surface emitting lasers; Al0.2Ga0.8As-AlAs-Al0.3Ga0.7As-GaAs-In0.28Ga0.72-GaAs0.9P0.1 - Interface; constant-wave pump-power-limited output power; frequency conversion; highly efficient compact green VECSEL; lens-less optical end-pumping scheme; optical-to-optical conversion efficiency; power 1.1 W; single chip pump laser diode; vertical-external-cavity surface-emitting laser; Frequency conversion; Gallium arsenide; Laser beams; Laser excitation; Optical harmonic generation; Optical pumping; Power generation; Pump lasers; Surface emitting lasers; Vertical cavity surface emitting lasers; End-pumped scheme; frequency conversion; heat spreader; high output power; vertical-external-cavity surface- emitting laser (VECSEL);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.902914
