Dynamic Characteristics and Linewidth Enhancement Factor of Quantum-Dot Vertical-Cavity Surface-Emitting Lasers

This study explores the relative intensity noise characteristics of quantum-dot vertical-cavity surface-emitting lasers (QD VCSELs). The resonance frequency and eye diagram are presented. The linewidth enhancement factor (alpha factor) of QD VCSEL is also investigated experimentally. The values of a...

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Veröffentlicht in:	IEEE journal of selected topics in quantum electronics 2009-05, Vol.15 (3), p.844-849
Hauptverfasser:	Peng-Chun Peng, Lin, G., Hao-Chung Kuo, Chao-En Yeh, Jui-Nung Liu, Chun-Ting Lin, Chen, J., Sien Chi, Chi, J.Y., Shing-Chung Wang
Format:	Artikel
Sprache:	eng
Schlagworte:	Laser noise Linewidth enhancement factor Phase shift Phase shifters Photonics quantum dot (QD) Quantum dot lasers Quantum dots Quantum electronics Radio frequencies Relative intensity noise relative intensity noise (RIN) Resonance Resonant frequency Semiconductor device noise Semiconductor lasers Surface emitting lasers Vertical cavity surface emission lasers Vertical cavity surface emitting lasers vertical-cavity surface-emitting laser (VCSEL)
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Zusammenfassung:	This study explores the relative intensity noise characteristics of quantum-dot vertical-cavity surface-emitting lasers (QD VCSELs). The resonance frequency and eye diagram are presented. The linewidth enhancement factor (alpha factor) of QD VCSEL is also investigated experimentally. The values of alpha factor were measured to be between 0.48 and 0.60. Moreover, a photonic RF phase shifter is examined using the QD VCSEL. A phase shifter with a total phase shift of 2pi was demonstrated. These investigations and demonstrations will be useful in the field of QD VCSEL.
ISSN:	1077-260X 1558-4542
DOI:	10.1109/JSTQE.2008.2011375