Design and optimization of evanescently coupled waveguide photodiodes

We present the design and optimization of evanescently coupled waveguide photodiodes（EC-WPDs） based on the coupling modes theory and the beam propagation method.Efficient focalization of the optical power in the absorber is achieved by an appropriate choice of index matching layers of EC-WPDs.Numeri...

Full description

Saved in:
Bibliographic Details
Published in:Journal of semiconductors 2011-10, Vol.32 (10), p.58-61
Main Author: 姚辰 程远兵 伍剑 徐坤 邱吉芳 赵玲娟 王圩 林金桐
Format: Article
Language:English
Subjects:
Beams (radiation)
Design engineering
High speed
Mathematical models
Optimization
Photodiodes
Semiconductors
Waveguides
优化
光束传播法
光电二极管
光通信系统
模式理论
波导耦合
耦合波导
设计
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present the design and optimization of evanescently coupled waveguide photodiodes（EC-WPDs） based on the coupling modes theory and the beam propagation method.Efficient focalization of the optical power in the absorber is achieved by an appropriate choice of index matching layers of EC-WPDs.Numerical simulation shows that high-speed（40 GHz）,high quantum efficiency（81%） and high linearity photodiodes can be achieved, and EC-WPDs are promising devices for future optical communication systems.
ISSN:1674-4926
DOI:10.1088/1674-4926/32/10/104006