Optical and Electrical Properties of Novel Quantum Dot Lasers and Amplifiers

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.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical and Computer Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Kim, Jung Ho

Contributors dc:contributor

• Chuang, Shun-Lien

• Engineering, Electronics and Electrical

Language dc:language

eng

Identifier

(MiAaPQ)AAI3223629

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/80958