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Title: Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition

Abstract

We demonstrate a new method for controlling diffractive, high-power beam combination, sensing phase errors by analyzing the intensity pattern of uncombined side beams at the output. A square array of eight beams is combined with <0.3% stability and 84.6% efficiency. As the channel count is increased, so does the usable information, enabling scaling to large channel counts without significant slowing of control loop response time, an advantage over single-input algorithms.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1580918
Alternate Identifier(s):
OSTI ID: 1560890
Grant/Contract Number:  
[AC02-05CH11231]
Resource Type:
Accepted Manuscript
Journal Name:
Optics Letters
Additional Journal Information:
[ Journal Volume: 44; Journal Issue: 18]; Journal ID: ISSN 0146-9592
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Du, Qiang, Zhou, Tong, Doolittle, Lawrence R., Huang, Gang, Li, Derun, and Wilcox, Russell. Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition. United States: N. p., 2019. Web. doi:10.1364/ol.44.004554.
Du, Qiang, Zhou, Tong, Doolittle, Lawrence R., Huang, Gang, Li, Derun, & Wilcox, Russell. Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition. United States. doi:10.1364/ol.44.004554.
Du, Qiang, Zhou, Tong, Doolittle, Lawrence R., Huang, Gang, Li, Derun, and Wilcox, Russell. Wed . "Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition". United States. doi:10.1364/ol.44.004554.
@article{osti_1580918,
title = {Deterministic stabilization of eight-way 2D diffractive beam combining using pattern recognition},
author = {Du, Qiang and Zhou, Tong and Doolittle, Lawrence R. and Huang, Gang and Li, Derun and Wilcox, Russell},
abstractNote = {We demonstrate a new method for controlling diffractive, high-power beam combination, sensing phase errors by analyzing the intensity pattern of uncombined side beams at the output. A square array of eight beams is combined with <0.3% stability and 84.6% efficiency. As the channel count is increased, so does the usable information, enabling scaling to large channel counts without significant slowing of control loop response time, an advantage over single-input algorithms.},
doi = {10.1364/ol.44.004554},
journal = {Optics Letters},
number = [18],
volume = [44],
place = {United States},
year = {2019},
month = {9}
}

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Works referenced in this record:

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