Tunable ultrashort electro-optical power divider using coupled photonic crystal waveguides
學年 100
學期 2
出版(發表)日期 2012-02-01
作品名稱 Tunable ultrashort electro-optical power divider using coupled photonic crystal waveguides
作品名稱(其他語言)
著者 Liu, Cheng-Yang
單位 淡江大學機械與機電工程學系
出版者 Abingdon: Taylor & Francis Ltd.
著錄名稱、卷期、頁數 Journal of Modern Optics 59(3), pp.218-225
摘要 Photonic crystals (PCs) have many potential applications because of their ability to control lightwave propagation. We have investigated the tunable ultrashort electro-optical power divider in two-dimensional PC structures. The power divider composed of a dielectric cylinder in air is studied by solving Maxwell’s equations using the plane wave expansion method and finite-difference time-domain method. The power-splitting mechanism is analogous to that of conventional directional couplers, utilizing coupling between guided modes supported by line defect waveguides. To increase the coupling coefficient of PC coupler, the radius of the rods between two waveguides is reduced. The switching mechanism is a change in the conductance in the coupling region between the waveguides and hence modulating the coupling coefficient and eventually switching is achieved. Such a mechanism of wavelength multiplexing should open up a new application for designing components in photonic integrated circuits.
關鍵字 coupler; power divider; coupling length; photonic crystal waveguide
語言 en
ISSN 0950-0340, 1362-3044
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 GBR
公開徵稿
出版型式
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/74872 )

機構典藏連結