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Title: Diffractive optical elements for transformation of modes in lasers

Abstract

Spatial mode conversion modules are described, with the capability of efficiently transforming a given optical beam profile, at one plane in space into another well-defined optical beam profile at a different plane in space, whose detailed spatial features and symmetry properties can, in general, differ significantly. The modules are comprised of passive, high-efficiency, low-loss diffractive optical elements, combined with Fourier transform optics. Design rules are described that employ phase retrieval techniques and associated algorithms to determine the necessary profiles of the diffractive optical components. System augmentations are described that utilize real-time adaptive optical techniques for enhanced performance as well as power scaling.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1257998
Patent Number(s):
9,373,928
Application Number:
14/797,003
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jul 10
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 43 PARTICLE ACCELERATORS

Citation Formats

Sridharan, Arun K, Pax, Paul H, Heebner, John E, Drachenberg, Derrek R., Armstrong, James P., and Dawson, Jay W. Diffractive optical elements for transformation of modes in lasers. United States: N. p., 2016. Web.
Sridharan, Arun K, Pax, Paul H, Heebner, John E, Drachenberg, Derrek R., Armstrong, James P., & Dawson, Jay W. Diffractive optical elements for transformation of modes in lasers. United States.
Sridharan, Arun K, Pax, Paul H, Heebner, John E, Drachenberg, Derrek R., Armstrong, James P., and Dawson, Jay W. Tue . "Diffractive optical elements for transformation of modes in lasers". United States. https://www.osti.gov/servlets/purl/1257998.
@article{osti_1257998,
title = {Diffractive optical elements for transformation of modes in lasers},
author = {Sridharan, Arun K and Pax, Paul H and Heebner, John E and Drachenberg, Derrek R. and Armstrong, James P. and Dawson, Jay W.},
abstractNote = {Spatial mode conversion modules are described, with the capability of efficiently transforming a given optical beam profile, at one plane in space into another well-defined optical beam profile at a different plane in space, whose detailed spatial features and symmetry properties can, in general, differ significantly. The modules are comprised of passive, high-efficiency, low-loss diffractive optical elements, combined with Fourier transform optics. Design rules are described that employ phase retrieval techniques and associated algorithms to determine the necessary profiles of the diffractive optical components. System augmentations are described that utilize real-time adaptive optical techniques for enhanced performance as well as power scaling.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {6}
}

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