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

Volume

19

Issue

20

fYear

2007

Firstpage

1655

Lastpage

1657

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.905076

Filename

4336155