THz optical pulses from a coupled-cavity quantum-dot laser

被引：7

作者：

Liu, J. ^{[1
]}

Lu, Z. G. ^{[1
]}

Poole, P. J. ^{[1
]}

Barrios, P. J. ^{[1
]}

Poitras, D. ^{[1
]}

Jiao, Z. ^{[1
,2
]}

Zhang, X. P. ^{[2
]}

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

[2] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

来源：

OPTICS COMMUNICATIONS | 2012年 / 285卷 / 06期

关键词：

Quantum-dot laser; Mode locking; THz repetition rate; Four-wave mixing; Fiber Bragg grating; MODE-LOCKING;

D O I：

10.1016/j.optcom.2011.10.037

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical pulses are generated from a coupled-cavity quantum-dot (QD) laser consisting of a short QD-waveguide Fabry-Perot (F-P) cavity and three long external fiber Bragg grating (FBG) cavities. When the laser is biased at low operation current, the feedback from the external cavities dominates and laser pulses have a 1.01 THz repetition rate, determined by the equal frequency difference of the three FBGs. We are thus able to decouple the repetition rate of a mode-locked laser from the cavity length. With much higher bias current, the QD F-P cavity dominates and the repetition rate is switched to 43.8 GHz, defined by the length of the F-P cavity. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：1323 / 1325

页数：3

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