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Novel Birefringent Frequency Discriminator for Microwave Photonic Links
dc.contributor.advisor | Madsen, Christi K | |
dc.contributor.advisor | Eknoyan, Ohannes | |
dc.creator | Kim, Jae Hyun | |
dc.date.accessioned | 2013-10-03T14:45:15Z | |
dc.date.available | 2015-05-01T05:57:09Z | |
dc.date.created | 2013-05 | |
dc.date.issued | 2013-04-22 | |
dc.date.submitted | May 2013 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/149441 | |
dc.description.abstract | A novel photonic frequency discriminator has been developed. The discriminator utilizes a Mach Zehnder interferometer-assisted ring resonator to achieve enhanced linearity. A numerical frequency-domain two-tone test is performed to evaluate the unique design of the discriminator, particularly for suppression of the third order intermodulation distortion. The discriminator is switchable between linear-intensity and linear-field regimes by adjusting a phase delay on one arm of the Mach Zehnder interferometer. Through the simulation, the linear<intensity discriminator is shown to be advantageous. The discriminator is an optical ring resonator-Mach Zehnder interferometer synthesized passive filter. The ring resonator is made of Arsenic trisulfide (As2S3) and the bus waveguide is a Titanium<diffused Lithium niobate (LiNbO3) waveguide. This As2S3 ring-on-Ti:LiNbO3 hybrid structure offers electro-optic tunability of the device owing to a strong electro-optic effect of the substrate material. A large optical confinement factor achieved by vertical integration of the As2S3 strip waveguide on a LiNbO3 substrate enables a low loss ring resonator. The Mach Zehnder interferometer is formed by the optical path length difference of the birefringent LiNbO3 substrate instead of a physical Y-branch structure, which makes the fabrication tolerances relaxed. In order for this highly birefringent device to be characterized, each polarization mode must be measured separately. A novel algorithm which can measure the wavelength-swept Jones matrix including its phase response is devised. The efficacy of the algorithm is demonstrated by characterizing a ring resonator. Finally, the fabricated discriminator is fully characterized using the algorithm. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.subject | Micriwave Photonics | en |
dc.subject | frequency discriminator | en |
dc.subject | RF-photonics | en |
dc.subject | optical waveguide | en |
dc.subject | planar lightwave circuit | en |
dc.subject | optical telecommunication | en |
dc.subject | analog optical link | en |
dc.subject | optical ring resonator | en |
dc.subject | lithium niobate | en |
dc.subject | chalcogenide photonics | en |
dc.subject | optical filter | en |
dc.title | Novel Birefringent Frequency Discriminator for Microwave Photonic Links | en |
dc.type | Thesis | en |
thesis.degree.department | Electrical and Computer Engineering | en |
thesis.degree.discipline | Electrical Engineering | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Doctor of Philosophy | en |
thesis.degree.level | Doctoral | en |
dc.contributor.committeeMember | Ji, Jim | |
dc.contributor.committeeMember | Yeh, Alvin T | |
dc.type.material | text | en |
dc.date.updated | 2013-10-03T14:45:15Z | |
local.embargo.terms | 2015-05-01 |
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