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This content will become publicly available on February 6, 2019

Title: Coherent addition of high power broad-area laser diodes with a compact VBG V-shaped external Talbot cavity

In this paper, we introduced a compact V-shaped external Talbot cavity for phase locking of high power broad-area laser diodes. The length of compact cavity is ~25 mm. Near diffraction-limit coherent addition of 10 broad-area laser diodes indicated that high quality phase locking was achieved. We measured the near-field emission mode of each individual broad-area laser diode with different feedback, such as a volume Bragg grating and a high reflection mirror. Finally, we found out that the best result of phase locking broad-area laser diodes was achieved by the compact V-shaped external Talbot cavity with volume Bragg grating feedback.
 [1] ;  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Engineering Science Advanced Research. Computational Sciences and Engineering Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Mechanical, Aerospace, and Biomedical Engineering
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Optics Communications
Additional Journal Information:
Journal Volume: 414; Journal ID: ISSN 0030-4018
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE; ORNL Laboratory Directed Research and Development (LDRD) Program; Office of Naval Research (ONR) (United States)
Country of Publication:
United States
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING; diode laser arrays; laser beam combining; laser beam shaping; laser resonators
OSTI Identifier: