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Title:Optical and Electrical Properties of Novel Quantum Dot Lasers and Amplifiers
Author(s):Kim, Jung Ho
Doctoral Committee Chair(s):Chuang, Shun-Lien
Department / Program:Electrical and Computer Engineering
Discipline:Electrical and Computer Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Electronics and Electrical
Abstract:In the case of the tunneling injection InP QD FP laser, a particular transverse-electric (TE) gain narrowing and transverse-magnetic (TM) gain pinning is measured below threshold. A polarization-dependent photon-mediated carrier redistribution with the coupled rate equation model is proposed to explain this unique optical gain evolution behavior. To experimentally demonstrate the proposed polarization-dependent photon-mediated carrier redistribution, the TE modal optical gain spectra of the tunneling injection QD laser with the grating-based external cavity are measured. The measured TE gain narrowing spectra are changed by tuning the external feedback wavelength. On the other hand, a typical band-filling behavior without gain narrowing is observed from the measured modal optical gain spectra of a QW laser both with and without the external optical feedback.
Issue Date:2006
Description:110 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.
Other Identifier(s):(MiAaPQ)AAI3223629
Date Available in IDEALS:2015-09-25
Date Deposited:2006

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