Polarization-independent optical isolator in a Sagnac-type configuration

We propose a polarization-independent optical isolator that does not use walk-off between the two orthogonal polarizations. The design is based on two Faraday rotators in combination with two half-wave plates in a closed, Sagnac-interferometer-like configuration. An experimental prototype is tested...

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Published in:Applied optics (2004) 2021-05, Vol.60 (14), p.4230-4234
Main Authors: Al-Mahmoud, Mouhamad, Dimova, Emiliya, Hristova, Hristina, Coda, Virginie, Rangelov, Andon A, Montemezzani, Germano
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Language:English
Subjects:
Configurations
Optics
Physics
Polarization
Wave plates
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cited_by cdi_FETCH-LOGICAL-c347t-6d7d67fc6a13ecd775890d42cedd399fa4f6b0899f0932afca984c3b20c84c6c3
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container_issue 14
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container_title Applied optics (2004)
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creator Al-Mahmoud, Mouhamad
Dimova, Emiliya
Hristova, Hristina
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Rangelov, Andon A
Montemezzani, Germano
description We propose a polarization-independent optical isolator that does not use walk-off between the two orthogonal polarizations. The design is based on two Faraday rotators in combination with two half-wave plates in a closed, Sagnac-interferometer-like configuration. An experimental prototype is tested successfully under variation of the input light polarization state with isolation level between 43 dB and 50 dB for all input polarizations (linear, circular, or elliptical).
doi_str_mv 10.1364/AO.423730
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subjects Configurations
Optics
Physics
Polarization
Wave plates
title Polarization-independent optical isolator in a Sagnac-type configuration
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