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dc.contributor.authorShankaranarayanan, N. K.en_US
dc.date.accessioned2014-03-14T21:50:17Z
dc.date.available2014-03-14T21:50:17Z
dc.date.issued1987-03-12en_US
dc.identifier.otheretd-11202012-040055en_US
dc.identifier.urihttp://hdl.handle.net/10919/45891
dc.description.abstract

Interference between the modes of an optical fiber generates specific mode (intensity) patterns which get modulated by disturbances in the optical fiber system. Mode-mode interference has been analyzed from first principles and a model based on differential phase modulation presented. Mode-mode interference effects such as intensity modulation of the mode patterns are directly related to differential phase modulation between modes which arises due to the difference between the propagation constants of the constituent modes. Practical implementation of modal methods involves selective launching of modes and processing of the output pattern to demodulate the information.

Axial strain has been chosen as the modulating mechanism in experiments designed to quantify mode-mode interference effects. Quasi-statically varying strain as well as vibrational strain was used to study 'dc' and 'ac' mechanisms. Specific mode combinations have been excited and their radiation patterns identified. Mode pattern changes have been described. Experimental observations and results correlate very well with analysis.

en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V855_1987.S526.pdfen_US
dc.subjectPolarization (Light)en_US
dc.subject.lccLD5655.V855 1987.S526en_US
dc.titleMode-mode interference in optical fibers : analysis and experimenten_US
dc.typeThesisen_US
dc.contributor.departmentElectrical Engineeringen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeechairClaus, Richard O.en_US
dc.contributor.committeememberPoon, Ting-Chungen_US
dc.contributor.committeememberSafaai-Jazi, Ahmaden_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11202012-040055/en_US
dc.date.sdate2012-11-20en_US
dc.date.rdate2012-11-20
dc.date.adate2012-11-20en_US


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