GaAs/AlGaAs polarization splitting directional couplers

Date

1997

Editor(s)

Advisor

Aydınlı, Atilla

Supervisor

Co-Advisor

Co-Supervisor

Instructor

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Abstract

Directional couplers are building blocks for m any guided wave devices in integrated optics and optoelectronics. They have been used as switches, modulators, wavelength filters, power dividers, wavelength m ultiplexer-dem ultiplexers, and are im portant com ponents for future switching networks. T he ability to control polarization allows fu rther flexibility in integration of optoelectronic com ponents. In this thesis, we present our work on the design, fabrication and characterization o f G aA s/A IG aA s polarization splitting directional couplers. W e have designed a directional coupler operating at 1.55 ¡.tm wavelength using a G aA s/A IG aA s heterostructure, th at have different coupling lengths for T E and T M polarized guided modes. T he device passively separates the T E and T M polarized guided modes entering the device at the sam e input port, at the output ports. M etal electrodes placed on the waveguides allowed for control of polarization.

Source Title

Publisher

Course

Other identifiers

Book Title

Degree Discipline

Physics

Degree Level

Master's

Degree Name

MS (Master of Science)

Citation

Published Version (Please cite this version)

Language

English

Type