skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Coherent addition of high power laser diode array with a V-shape external Talbot cavity

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.16.020935· OSTI ID:1346619
 [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Here, 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.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Work for Others (WFO); USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1346619
Journal Information:
Optics Express, Vol. 16, Issue 25; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English