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

作者：Peng Peng Chun^*; Lin Gray; Kuo Hao Chung; Yeh Chao En; Liu Jui Nung; Lin Chun Ting; Chen Jason; Chi Sien; Chi Jim Y; Wang Shing Chung

来源：IEEE Journal of Selected Topics in Quantum Electronics, 2009, 15(3): 844-849.

DOI：10.1109/JSTQE.2008.2011375

• Linewidth enhancement factor
• quantum dot (QD)
• relative intensity noise (RIN)
• vertical-cavity surface-emitting laser (VCSEL)

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 2 pi was demonstrated. These investigations and demonstrations will be useful in the field of QD VCSEL.

• 出版日期2009-6
• 单位东华大学