Communications Project

Document Type:Master's Thesis
Name:Priya Perumalsamy
Title:In-line Fiber Polarizer
Degree:Master of Science
Department:Electrical Engineering
Committee Chair: Richard O. Claus
Committee Members:Dr. Anbo Wang
Dr. Marten de Vries
Keywords:Fiber polarizer, Surface plasmon, Ionic self-assembled process.
Date of defense:April 25, 1998
Availability:Release the entire work immediately worldwide.


Polarizers and polarization devices are important components in fiber optic communication and sensor systems. There is a growing need for efficient low loss components that are compatible with optical fibers. An all fiber in-line polarizer is a more desirable alternative that could be placed at appropriate intervals along communication links.

An in-line fiber polarizer was fabricated and tested. The in-line fiber polarizer operates by coupling optical energy propagating in the fiber to a surface plasmon on a metallic film, which has been deposited onto the surface of the fiber. The device was constructed by polishing a short section of the lateral surface of the cladding to within the evanescent field present around the fiber core. Several thin films including a metal film are applied to the polished section of the fiber. Ionic self-assembled monolayer method was used to coat the polished fiber with thin film.

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