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

Abstract

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.

Authors:
 [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:
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)
OSTI Identifier:
1424490
DOE Contract Number:
AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Optics Communications; Journal Volume: 414
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING; diode laser arrays; laser beam combining; laser beam shaping; laser resonators

Citation Formats

Liu, Bo, and Braiman, Yehuda. Coherent addition of high power broad-area laser diodes with a compact VBG V-shaped external Talbot cavity. United States: N. p., 2018. Web. doi:10.1016/j.optcom.2018.01.021.
Liu, Bo, & Braiman, Yehuda. Coherent addition of high power broad-area laser diodes with a compact VBG V-shaped external Talbot cavity. United States. doi:10.1016/j.optcom.2018.01.021.
Liu, Bo, and Braiman, Yehuda. Tue . "Coherent addition of high power broad-area laser diodes with a compact VBG V-shaped external Talbot cavity". United States. doi:10.1016/j.optcom.2018.01.021.
@article{osti_1424490,
title = {Coherent addition of high power broad-area laser diodes with a compact VBG V-shaped external Talbot cavity},
author = {Liu, Bo and Braiman, Yehuda},
abstractNote = {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.},
doi = {10.1016/j.optcom.2018.01.021},
journal = {Optics Communications},
number = ,
volume = 414,
place = {United States},
year = {Tue Feb 06 00:00:00 EST 2018},
month = {Tue Feb 06 00:00:00 EST 2018}
}