Title :
The Influence of differential modal gain on the filamentary behavior of broad area diode lasers
Author :
M. Winterfeldt;P. Crump;S. Knigge;A. Maassdorf;G. Erbert;G. Trankle
Author_Institution :
Ferdinand-Braun-Inst., Leibniz-Inst. fur Hochstfrequenztechnik, Berlin, Germany
Abstract :
High power diode lasers with low modal gain (~4 cm-1), predicted to operate with very low filamentation, are shown to operate with near-field modulation depth half that of reference devices (~12 cm-1). However, beam quality is unaffected.
Keywords :
"Laser beams","Modulation","Measurement by laser beam","Structural beams","Current measurement","Molecular beam epitaxial growth","Length measurement"
Conference_Titel :
Photonics Conference (IPC), 2015
DOI :
10.1109/IPCon.2015.7323515