Publication Type
Journal
Journal Name
Optics Express
Publication Date
Page Numbers
20935 to 20942
Volume
16
Issue
25
Abstract
We designed a V-shape external Talbot cavity for a broad-area laser diode array and achieved coherent laser beam addition without using a spatial filter. The V-shape external Talbot cavity provides good mode-discrimination and high-power running capability. Coherent laser beam addition of up to 9-W output power at a narrow spectral linewidth (~0.1 nm) is demonstrated. A multi-lobe far-field profile generated by a low filling-factor phase-locked array is confirmed by our numerical simulation.
