Title :
Diagnosing and addressing the limitations to lateral far field angle in high power broad-area diode lasers
Author :
Crump, P. ; Böldicke, S. ; Schultz, C.M. ; Ekhteraei, H. ; Wenzel, H. ; Erbert, G.
Author_Institution :
Ferdinand-Braun-Inst. (Leibniz-Inst. fur Hochstfrequenztech.), Berlin, Germany
Abstract :
We show experimentally that thermal lensing largely determines the lateral mode properties of broad-area lasers. However, additional broadening is observed at high powers, which will limit how effectively mode-filtering techniques can improve beam quality.
Keywords :
optical filters; semiconductor lasers; thermal lensing; high power broad-area diode lasers; lateral far field angle; lateral mode properties; mode-filtering; thermal lensing; Laser beams; Laser modes; Lenses; Measurement by laser beam; Power lasers; Thermal lensing; Waveguide lasers;
Conference_Titel :
Photonics Society Summer Topical Meeting Series, 2012 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4577-1526-6
DOI :
10.1109/PHOSST.2012.6280787
