High power monolithically integrated diode laser, preamplifier, and coherent beam expander

O'Brien, S. ; Mehuys, D. ; Welch, D. F. ; Parke, R. ; Scifres, D.

Woodbury, NY : American Institute of Physics (AIP)
Published 1992
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
An integrated coherent beam expander utilizing a transverse leaky mode waveguide has been integrated with a single mode distributed Bragg reflector laser and a preamplifier producing powers in excess of 70 mW cw in a single spectral and spatial mode across an aperture over 100 μm wide. The far-field pattern in the direction parallel to the plane of the p-n junction, consists of one main lobe 0.45° wide, indicating that the beam is coherent over the full emitting aperture. The expanded beam is suitable as an injection source for an integrated broad area amplifier.
Type of Medium:
Electronic Resource
URL: