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Title:A Universal Heterostructure for Photonic Integrated Circuit Applications
Author(s):Herzinger, Craig Matthew
Doctoral Committee Chair(s):DeTemple, T.A.,
Department / Program:Electrical Engineering
Discipline:Electrical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Electronics and Electrical
Abstract:The issues involved in using a "universal heterostructure" technology for the fabrication of integrated waveguide photonic circuits are investigated using an optical 2 x 2 crossbar switch as a case study. The optical characteristics of slab waveguides are investigated as candidate "universal" structures. Different core profiles, core sizes, and cladding arrangements are considered. A reverse-biased laser heterostructure is demonstrated to be a viable integrated modulator. Local widening of the optical band gap for modulators and passive guides by vacancy-induced layer disordering (VILD) is shown to be an essential integration process. A wet-etched ridge technology for lateral waveguide formation is adopted after the usefulness of impurity-induced layer disordering (IILD) is shown to be limited, especially for large core waveguide structures. The routing characteristics of wet-etched large and small core waveguide structures are shown to be similar to the best IILD formed waveguides. Finally, a system representation for analyzing the performance of a blocking 2 x 2 crossbar switch is developed and used in conjunction with the experimentally measured performance of a gain-modulated device.
Issue Date:1993
Description:132 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1993.
Other Identifier(s):(UMI)AAI9329056
Date Available in IDEALS:2014-12-16
Date Deposited:1993

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