Tunable Optical Group Delay in Active Semiconductor Optoelectronic Devices
Fisher, Matthew Robert
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https://hdl.handle.net/2142/80956
Description
Title
Tunable Optical Group Delay in Active Semiconductor Optoelectronic Devices
Author(s)
Fisher, Matthew Robert
Issue Date
2006
Doctoral Committee Chair(s)
Chuang, Shun-Lien
Department of Study
Electrical and Computer Engineering
Discipline
Electrical and Computer Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
Nonlinear optical effects on the delay provided by active filters are then discussed. The nonlinear transmittance spectra of a Fabry-Perot amplifier are measured, and the results are accurately predicted using a self-consistent model. The model is then used to predict the corresponding delay spectra for different input signal powers and operating regimes. A microwave photonic phase-shifter is then proposed and demonstrated using wavelength conversion in a distributed-feedback laser. This scheme provides microwave phase shifts greater than 140° over GHz bandwidths, and is relatively insensitive to the input wavelength. Finally, future prospects for tunable delay elements based on optoelectronic devices are discussed.
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