Magnetic pulse generation for high-speed magneto-optic switching

dc.contributor.author Kemmet, Sasha
dc.contributor.author Mina, Mani
dc.contributor.author Mina, Mani
dc.contributor.author Weber, Robert
dc.contributor.department Electrical and Computer Engineering
dc.date 2018-02-17T02:19:47.000
dc.date.accessioned 2020-06-30T02:03:25Z
dc.date.available 2020-06-30T02:03:25Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.issued 2011-01-01
dc.description.abstract <p>In this article, the magnetic pulse characteristics needed to achieve high-speed magneto-optic (MO) switching are investigated. A fiber-based, MO, low-voltage optical switch capable of 200 ns switching is presented, along with the special circuit characteristics for magnetic field generation for high-speed switching. The switch consists of the optical system, the MO material (bismuth substituted iron garnet [(Bi<sub>1.1</sub>Tb<sub>1.9</sub>)(Fe<sub>4.25</sub>Ga<sub>0.75</sub>)O<sub>12</sub>]), and a high-speed magnetic field driving circuit. A Faraday rotator is placed within the interferometric loop of a fiber-optic Sagnac interferometer, and interference at the output ports is controlled by the applied field. The fast switching speed is accomplished via the special design of the magnetic pulse generation circuitry. The applied magnetic field overshoots the field necessary to achieve the desired Faraday rotation and then settles to a steady state field. If the duration of the overshoot is less than the time it takes the material to saturate, a fast optical switching time can be achieved without saturating the material. The effects of the overshoot amplitude and duration and steady-state amplitude on optical rise time (determined by domain wall velocity) are studied and experimental results are presented.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics</em> 109 (2011): and may be found at doi: <a href="http://dx.doi.org/%2010.1063/1.3549632" target="_blank">10.1063/1.3549632</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ece_pubs/58/
dc.identifier.articleid 1060
dc.identifier.contextkey 7677339
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ece_pubs/58
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/21117
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ece_pubs/58/2011_MinaM_MagneticPulseGeneration.pdf|||Sat Jan 15 01:01:05 UTC 2022
dc.source.uri 10.1063/1.3549632
dc.subject.disciplines Electrical and Computer Engineering
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.keywords applied field
dc.subject.keywords applied magnetic fields
dc.subject.keywords domain wall velocities
dc.subject.keywords Faraday rotations
dc.subject.keywords Faraday rotators
dc.subject.keywords fast switching
dc.subject.keywords high-speed switching
dc.subject.keywords iron garnet
dc.subject.keywords low-voltage
dc.subject.keywords magnetic pulse
dc.subject.keywords Ms switching
dc.subject.keywords optic switching
dc.subject.keywords output ports
dc.subject.keywords risetimes
dc.subject.keywords sagnac interferometer
dc.subject.keywords gallium
dc.title Magnetic pulse generation for high-speed magneto-optic switching
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 67ebca67-8fe0-45a7-ba89-f52eaef49ab1
relation.isOrgUnitOfPublication a75a044c-d11e-44cd-af4f-dab1d83339ff
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