Title :
12W high-brightness single-frequency DBR tapered diode laser
Author :
Fiebig, C. ; Blume, Gunnar ; Kaspari, C. ; Feise, David ; Fricke, J. ; Matalla, M. ; John, Wolfgang ; Wenzel, Hans ; Paschke, Katrin ; Erbert, Gotz
Author_Institution :
Ferdinand-Braun- Inst. fur Hochstfrequenztechnik, Berlin
Abstract :
A distributed Bragg reflector (DBR) tapered diode laser with a record optical output power of 12 W and a conversion efficiency of about 44% is presented. The device has a sixth-order surface grating and shows single longitudinal mode emission at 979 nm as well as a nearly diffraction limited beam. At 11.4 W the laser has a lateral beam propagation factor of M 2 1/ e 2=1.1 with 72% of the power in the central lobe.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; laser beams; laser modes; light propagation; semiconductor lasers; DBR laser; diffraction limited beam; distributed Bragg reflector laser; efficiency 44 percent; lateral beam propagation factor; longitudinal mode emission; power 11.4 W; power 12 W; sixth-order surface grating; tapered diode laser; wavelength 979 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081371
