Harmonic mode-locking in quantum dot lasers with tunnel-coupled waveguides

被引：0
|
作者：
N. Yu. Gordeev
M. V. Maximov
I. O. Bakshaev
M. S. Buyalo
I. M. Gadzhiev
N. D. Il’inskaya
E. L. Portnoy
机构：
[1] Russian Academy of Sciences,Ioffe Physical Technical Institute
来源：
Technical Physics Letters | 2012年 / 38卷
关键词：
Saturable Absorber; Passive Mode; Threshold Current Density; Time Bandwidth Product; Modulator Response Rate;
D O I：
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中图分类号：
学科分类号：
摘要：
Passive mode-locking has been studied in the lasers with tunnel-coupled waveguides with the active region based on InAs/InGaAs quantum dots emitting in the range of 1.3–1.31 μm. Specific optical mode formation in this composite waveguide reduces the output beam divergence and raises the temperature stability of the lasing wavelength. The reduced optical confinement factor facilitates obtaining passive modelocking regimes. High response rate of the saturable absorber associated with the carrier escape time shorter than 20 ps allows generating a third harmonic with the frequency as high as 46.1 GHz.
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页码：67 / 69
页数：2
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