Minimisation of out-of-plane losses in slab photonic crystals by optimising vertical heterostructure

被引：0

作者：

Kappeler, R. ^{[1
]}

Kaspar, P. ^{[2
]}

Jaeckel, H. ^{[3
]}

Hafner, Ch. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Electromagnet Fields & Microwave Elect Lab, Zurich, Switzerland

[2] Swiss Fed Inst Technol, Opt Mat Engn Lab, Zurich, Switzerland

[3] Swiss Fed Inst Technol, Elect Lab, Zurich, Switzerland

来源：

ELECTRONICS LETTERS | 2012年 / 48卷 / 24期

关键词：

WAVE-GUIDES; LASER; INP;

D O I：

10.1049/el.2012.2927

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：

Planar line-defect photonic crystal waveguides with a weak vertical refractive index contrast (substrate-type) suffer from large propagation losses in the order of 600-1000 dB/cm. A possibility to reduce propagation losses is to optimise the vertical layer stack for a given hole shape. This strategy is pursued to reduce the propagation losses numerically and experimentally. It is demonstrated that the loss figure can vary by a factor of about 2 for relatively small changes in the core layer thickness.

引用

页码：1550 / U16

页数：2

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