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Title: Gas cooled faraday rotator and method

Abstract

To enable several orders of magnitude increases in average power and energy handling capability of Faraday rotators, the technology utilizes high speed gas cooling to efficiently remove thermal loading from the Faraday optic faces while minimizing the thermal wavefront and thermal birefringence by creating a longitudinal thermal gradient. A recirculating gas cooling manifold accelerates the gas over the surface of the slab to create a turbulent flow condition which maximizes the surface cooling rate. The technology further provides a spatially uniform thermal profile on the Faraday slabs.

Inventors:
; ;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
2222328
Patent Number(s):
11754866
Application Number:
16/641,977
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/27/2018
Country of Publication:
United States
Language:
English

Citation Formats

Bayramian, Andrew J., Erlandson, Alvin C., and Mason, Daniel C. Gas cooled faraday rotator and method. United States: N. p., 2023. Web.
Bayramian, Andrew J., Erlandson, Alvin C., & Mason, Daniel C. Gas cooled faraday rotator and method. United States.
Bayramian, Andrew J., Erlandson, Alvin C., and Mason, Daniel C. Tue . "Gas cooled faraday rotator and method". United States. https://www.osti.gov/servlets/purl/2222328.
@article{osti_2222328,
title = {Gas cooled faraday rotator and method},
author = {Bayramian, Andrew J. and Erlandson, Alvin C. and Mason, Daniel C.},
abstractNote = {To enable several orders of magnitude increases in average power and energy handling capability of Faraday rotators, the technology utilizes high speed gas cooling to efficiently remove thermal loading from the Faraday optic faces while minimizing the thermal wavefront and thermal birefringence by creating a longitudinal thermal gradient. A recirculating gas cooling manifold accelerates the gas over the surface of the slab to create a turbulent flow condition which maximizes the surface cooling rate. The technology further provides a spatially uniform thermal profile on the Faraday slabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {9}
}

Works referenced in this record:

High average power Faraday isolator
patent, May 1992


Article comprising a variable optical attenuator
patent, November 1999


Laser amplifier module
patent, May 2022


Electro-Optic Device with Gap-Coupled Electrode
patent-application, May 2012


Compact narrow band imaging system
patent, November 2012