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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:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1213427
Patent Number(s):
9,124,066
Application Number:
13/791,563
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LSO
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Mar 08
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

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., 2015. 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/1213427.
@article{osti_1213427,
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 = {Tue Sep 01 00:00:00 EDT 2015},
month = {Tue Sep 01 00:00:00 EDT 2015}
}

Patent:

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