Publication Date:
2011-08-19
Description:
Broad-area lasers are fabricated with a long (80-100 microns), nonabsorbing window at each end. The window is shown to dramatically improve the spatial mode properties, stabilizing and smoothing the near field, and reducing the far field from 5-15 deg to as low as 2 deg. This improvement comes at the expense of an increase in threshold current and a reduction of quantum efficiency.
Keywords:
LASERS AND MASERS
Type:
Applied Physics Letters (ISSN 0003-6951); 53; 1372-137
Format:
text