Two-Section Quantum-Dot Mode-Locked Lasers Under Optical Feedback: Pulse Broadening and Harmonic Operation

被引：13
|
作者：
Simos, Hercules [1 ,2 ]
Simos, Christos [1 ,3 ]
Mesaritakis, Charis [1 ]
Syvridis, Dimitris [1 ]
机构：
[1] Natl & Kapodistrian Univ Athens, Dept Informat & Telecommun, Opt Commun Lab, GR-15784 Athens, Greece
[2] Technol Educ Inst Piraeus, Dept Elect, Athens 12244, Greece
[3] Technol Educ Inst Lamia, Dept Elect, GR-35100 Lamia, Greece
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2012年 / 48卷 / 07期
关键词：
Mode-locking; optical feedback; quantum-dot laser; semiconductor lasers; TRAVELING-WAVE MODEL;
D O I：
10.1109/JQE.2012.2193387
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we numerically investigate the role of gain and absorber dynamics on the operation of monolithic two-section mode-locked quantum-dot lasers under optical feedback. The analysis is carried out by means of a time-domain traveling wave model for propagation in the gain and absorbing sections. The obtained results indicate that in devices with slow dynamics, pulse duration tends to increase significantly with feedback. On the contrary, devices with fast dynamics exhibit an operation that depends primarily on the external cavity length.
引用
收藏
页码：872 / 877
页数：6
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