Title :
920-nm Vertical-External-Cavity Surface-Emitting Lasers With a Slope Efficiency of 58% at Room Temperature
Author :
Kim, Ki-Sung ; Yoo, Jaeryung ; Kim, Gibum ; Lee, Sangmoon ; Cho, Soohaeng ; Kim, Junyoun ; Kim, Taek ; Park, YongJo
Author_Institution :
Samsung Adv. Inst. of Technol., Suwon
Abstract :
We report a high-power fundamental transverse mode operation of an optically pumped 920-nm vertical-external- cavity surface-emitting laser. The effects of the gain related structural parameters on the laser performance are investigated. Based on the optimization of the gain structure and the thermal management, a maximum pump-limited output power of 12 W in a TEM00 mode with a slope efficiency of 58% (input power of 24 W) was achieved at room temperature.
Keywords :
laser modes; optical pumping; semiconductor lasers; surface emitting lasers; gain related structural parameters; optically pumping; power 21 W; power 24 W; slope efficiency; thermal management; transverse mode operation; vertical-external-cavity surface-emitting lasers; wavelength 920 nm; Laser excitation; Laser modes; Optical pumping; Performance gain; Pump lasers; Structural engineering; Surface emitting lasers; Temperature; Thermal management; Vertical cavity surface emitting lasers; External-cavity lasers; high-power lasers; resonant periodic gain (RPG); vertical-cavity lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.905076
