Modeling of Single-Section Quantum Dot Mode-Locked Lasers: Impact of Group Velocity Dispersion and Self Phase Modulation

Author

Zhejing Jiao ; Rong Zhang ; Xiupu Zhang ; Jiaren Liu ; Zhenguo Lu

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada

Volume

49

Issue

12

fYear

2013

fDate

Dec. 2013

Firstpage

1008

Lastpage

1015

Abstract

A short pulse train with pulsewidth was generated in a quantum dot mode-locked laser (QD MLL). Due to the short dispersion length, it is required to include group-velocity dispersion (GVD) in modeling pulse train generation and evolution from QD MLLs. On the other hand, Kerr effect is also required to consider due to high peak power density in the laser cavity, and its induced self-phase modulation (SPM) also contributes to the pulse evolution. In this paper, a time domain traveling wave model, including the effect of GVD and SPM, combined with rate equations, is established to model the pulse evolution in a single-section QD MLL. It is shown that the pulse evolution calculated by this model is in reasonable agreement with the experiments. The contribution to the pulse evolution by the GVD and SPM impact is discussed.

Keywords

laser cavity resonators; laser mode locking; optical Kerr effect; optical pulse generation; quantum dot lasers; self-phase modulation; Kerr effect; group velocity dispersion; high peak power density; laser cavity; self-phase modulation; short pulse train generation; single-section quantum dot mode-locked lasers; time domain traveling wave model; Approximation methods; Cavity resonators; Dispersion; Equations; Mathematical model; Quantum dot lasers; Time-domain analysis; Kerr-lens effect; Quantum dot mode-locked laser; group-velocity dispersion (GVD); time-domain traveling wave;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2013.2285115

Filename

6626576