An affordable and adaptable Faraday isolator design for research

Presented here is an affordable Faraday isolator designed to account for conditions of high pulse energy and high total power lasers, with a clear input aperture allowing beam diameters up to 12 mm, and pulse energies and total powers limited by the dielectric crystal. This Faraday isolator is meant...

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Main Authors: Nicholas L. Wong, Ben Delaney, Takanori Miyazaki, Emma Sokell, Fergal O’Reilly
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:HardwareX
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Online Access:http://www.sciencedirect.com/science/article/pii/S246806722500001X
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author Nicholas L. Wong
Ben Delaney
Takanori Miyazaki
Emma Sokell
Fergal O’Reilly
author_facet Nicholas L. Wong
Ben Delaney
Takanori Miyazaki
Emma Sokell
Fergal O’Reilly
author_sort Nicholas L. Wong
collection DOAJ
description Presented here is an affordable Faraday isolator designed to account for conditions of high pulse energy and high total power lasers, with a clear input aperture allowing beam diameters up to 12 mm, and pulse energies and total powers limited by the dielectric crystal. This Faraday isolator is meant for laboratories with limited resources yet still need the features of commercial Faraday isolators. The design consists of a 3D printed mount housing seven permanent neodymium ring magnets, a Terbium Gallium Garnet (TGG) dielectric crystal, and two polarizing beam splitter cubes. Additionally, the design is customizable for different laser parameters, with the presented example isolator made for 1064 nm lasers. Measurements of the extinction ratio and a Stokes parameter analysis from different points within the isolator validated and characterized the constructed Faraday isolator. The final design had a measured minimum extinction ratio of 31.5±0.3 dB and a maximum of 39.9±0.2 dB depending on the polarization of back reflected light.
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spelling doaj-art-77a02d2007804c83aba7f4bd327d6a112025-02-02T05:29:07ZengElsevierHardwareX2468-06722025-03-0121e00623An affordable and adaptable Faraday isolator design for researchNicholas L. Wong0Ben Delaney1Takanori Miyazaki2Emma Sokell3Fergal O’Reilly4Corresponding authors.; School of Physics, Science Centre North, University College Dublin, Belfield Dublin 4, IrelandSchool of Physics, Science Centre North, University College Dublin, Belfield Dublin 4, IrelandSchool of Physics, Science Centre North, University College Dublin, Belfield Dublin 4, IrelandSchool of Physics, Science Centre North, University College Dublin, Belfield Dublin 4, IrelandCorresponding authors.; School of Physics, Science Centre North, University College Dublin, Belfield Dublin 4, IrelandPresented here is an affordable Faraday isolator designed to account for conditions of high pulse energy and high total power lasers, with a clear input aperture allowing beam diameters up to 12 mm, and pulse energies and total powers limited by the dielectric crystal. This Faraday isolator is meant for laboratories with limited resources yet still need the features of commercial Faraday isolators. The design consists of a 3D printed mount housing seven permanent neodymium ring magnets, a Terbium Gallium Garnet (TGG) dielectric crystal, and two polarizing beam splitter cubes. Additionally, the design is customizable for different laser parameters, with the presented example isolator made for 1064 nm lasers. Measurements of the extinction ratio and a Stokes parameter analysis from different points within the isolator validated and characterized the constructed Faraday isolator. The final design had a measured minimum extinction ratio of 31.5±0.3 dB and a maximum of 39.9±0.2 dB depending on the polarization of back reflected light.http://www.sciencedirect.com/science/article/pii/S246806722500001XOptical isolator3D printedFaraday rotatorStokes parameterMueller matrix
spellingShingle Nicholas L. Wong
Ben Delaney
Takanori Miyazaki
Emma Sokell
Fergal O’Reilly
An affordable and adaptable Faraday isolator design for research
HardwareX
Optical isolator
3D printed
Faraday rotator
Stokes parameter
Mueller matrix
title An affordable and adaptable Faraday isolator design for research
title_full An affordable and adaptable Faraday isolator design for research
title_fullStr An affordable and adaptable Faraday isolator design for research
title_full_unstemmed An affordable and adaptable Faraday isolator design for research
title_short An affordable and adaptable Faraday isolator design for research
title_sort affordable and adaptable faraday isolator design for research
topic Optical isolator
3D printed
Faraday rotator
Stokes parameter
Mueller matrix
url http://www.sciencedirect.com/science/article/pii/S246806722500001X
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