Photonic Crystal Fano Laser: Terahertz Modulation and Ultrashort Pulse Generation

被引：73
|
作者：
Mork, J. [1 ]
Chen, Y. [1 ]
Heuck, M. [1 ]
机构：
[1] Tech Univ Denmark, DTU Foton, DK-2800 Lyngby, Denmark
来源：
PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 16期
关键词：
COUPLED-MODE THEORY; OPTICAL FEEDBACK; NANOCAVITY; CONFINEMENT;
D O I：
10.1103/PhysRevLett.113.163901
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We suggest and analyze a laser with a mirror realized by Fano interference between a waveguide and a nanocavity. For small-amplitude modulation of the nanocavity resonance, the laser can be modulated at frequencies exceeding 1 THz, not being limited by carrier dynamics as for conventional lasers. For larger modulation, a transition from pure frequency modulation to the generation of ultrashort pulses is observed. The laser dynamics is analyzed by generalizing the field equation for conventional lasers to account for a dynamical mirror, described by coupled mode theory.
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页数：5
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