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dc.contributor.authorHah, Dooyoung
dc.date.accessioned2021-02-15T10:04:19Z
dc.date.available2021-02-15T10:04:19Z
dc.date.issued10.01.2020en_US
dc.identifier.issn1559-128X
dc.identifier.issn2155-3165
dc.identifier.otherPubMed ID: 32225304
dc.identifier.urihttps://doi.org/10.1364/AO.59.000277
dc.identifier.urihttps://hdl.handle.net/20.500.12573/559
dc.descriptionAbdullah Gul University (FOA-2016-49).en_US
dc.description.abstractA design method is proposed for variable optical attenuators (VOAs), aiming at linear attenuation-voltage characteristics, and verified by finite element analysis. Devices of interest are planar VOAs based on microelectromechanical systems technology, with either a knife-edge shutter or a reflector. The proposed method calculates the shape of the fingers of the comb-drive actuators that are used to move the optical component (shutter or reflector) to change the attenuation level. The calculation is, in effect, tantamount to solving a differential equation that encompasses the optical model of the device, electromechanical behavior of the actuators, and the objective of the design, i.e., linear attenuation-voltage characteristics. The design method is almost all-analytical with minimum usage of numerical analysis. The obtained designs are further examined by three-dimensional finite element analysis to understand their effectiveness and to probe the validity of the approximations used. The best linearity factor (defined as % deviation from the ideal case) obtained is 1.34% for both shutter- and reflection-type devices when the conditions are set as 1-dB insertion loss and 50-dB maximum attenuation. (C) 2020 Optical Society of Americaen_US
dc.description.sponsorshipAbdullah Gul University FOA-2016-49en_US
dc.language.isoengen_US
dc.publisherOPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USAen_US
dc.relation.isversionof10.1364/AO.59.000277en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFORMen_US
dc.subjectVOAen_US
dc.titleLinear variable optical attenuators with shaped-finger comb-drive actuatorsen_US
dc.typearticleen_US
dc.contributor.departmentAGÜ, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği Bölümüen_US
dc.contributor.authorID0000-0002-1290-0597en_US
dc.identifier.volumeVolume: 59en_US
dc.identifier.issue2en_US
dc.identifier.startpage277en_US
dc.identifier.endpage284en_US
dc.relation.journalAPPLIED OPTICSen_US
dc.relation.publicationcategoryMakale - Uluslararası - Editör Denetimli Dergien_US


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