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首页> 外文期刊>Optical and quantum electronics >Theoretical investigation of static and dynamic characteristics of vertical-cavity surface-emitting lasers with incorporated two-dimensional photonic crystals
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Theoretical investigation of static and dynamic characteristics of vertical-cavity surface-emitting lasers with incorporated two-dimensional photonic crystals

机译：结合二维光子晶体的垂直腔面发射激光器静态和动态特性的理论研究

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摘要

A dynamical model of oxide-confined Vertical-Cavity Surface-Emitting Lasers (VCSELs) with two-dimensional photonic crystals (PCs) incorporated within them so called PC-VCSELs is presented and used to optimise designs for high-power single-mode operation. Three PC-VCSEL designs are considered: (I) with holes in the top DBRs, (II) with PC holes situated between their DBRs and (III) with PC holes etched through the entire VCSEL. A simulated design for a PC-VCSEL of type (I) with holes of d = 2μ,m diameter, a = 4 μm lattice constant (d/a = 0.5) and 2.2 μm depth was found to improve the single mode behaviour but not enough to establish single mode behaviour for large apertures. The modulation behaviour was not degraded by the PC. Simulations of type (II) and (III) PC-VCSELs, with the same parameters, have shown multimode operation and degraded modulation properties. Simulations of PC-VCSELs of type (III) with holes of d = 0.2 μm diameter and a = 0.4 μm lattice constant (d/a = 0.5) have shown improved modulation properties and enhanced single mode power for small apertures. In simulation, PC-VCSELs incorporating multiple PC-defects have shown order of magnitude increases in the single mode output power. However, the modulation properties of these VCSELs show degradation due to gain saturation and hopping of the optical modes localized within the PC defects. Keywords Photonic crystal • Multiple-defect photonic crystal • Vertical-cavity surface-emitting laser • Single-mode • Direct modulation
机译：提出了一种氧化物约束的垂直腔面发射激光器（VCSEL）并结合了二维光子晶体（PC）的动力学模型，称为PC-VCSEL，并将其用于优化高功率单模工作的设计。考虑了三种PC-VCSEL设计：（I）在顶部DBR中具有孔，（II）在其DBR之间具有PC孔，以及（III）在整个VCSEL中蚀刻了PC孔。发现具有直径d =2μm的孔，a = 4μm的晶格常数（d / a = 0.5）和2.2μm深度的（I）型PC-VCSEL的模拟设计可以改善单模性能，但不能改善足以为大光圈建立单模性能。 PC不会降低调制性能。具有相同参数的（II）和（III）型PC-VCSEL的仿真显示了多模工作和降低的调制性能。具有直径d = 0.2μm和a = 0.4μm晶格常数（d / a = 0.5）的孔的类型（III）的PC-VCSEL的仿真显示出改进的调制特性和增强的小孔径单模功率。在仿真中，合并了多个PC缺陷的PC-VCSEL显示出单模输出功率的数量级增加。但是，这些VCSEL的调制特性由于增益饱和和PC缺陷内局部的光学模式的跳跃而显示出劣化。关键词光子晶体•多缺陷光子晶体•垂直腔面发射激光器•单模•直接调制

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  • 来源
    《Optical and quantum electronics》 |2010年第3期|p.193-213|共21页
  • 作者

    P. S. Ivanov; J. M. Rorison;

  • 作者单位

    Optoelectronics Group, Centre for Communications Research, Electrical and Electronic Engineering Department, University of Bristol, Bristol BS8 1UB, UK;

    Optoelectronics Group, Centre for Communications Research, Electrical and Electronic Engineering Department, University of Bristol, Bristol BS8 1UB, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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