量子电子学报
量子電子學報
양자전자학보
CHINESE JOURNAL OF QUANTUM ELECTRONICS
2011年
6期
753-758
,共6页
张旋%廖清华%于天宝%刘念华
張鏇%廖清華%于天寶%劉唸華
장선%료청화%우천보%류념화
光通信%光子晶体%波分解复用器%多模干涉效应%平面波展开法%时域有限差分法
光通信%光子晶體%波分解複用器%多模榦涉效應%平麵波展開法%時域有限差分法
광통신%광자정체%파분해복용기%다모간섭효응%평면파전개법%시역유한차분법
optical communication%photonic crystal%wavelength division demultiplexer%multi-mode interference effect%plane wave expansion method%finite-difference time-domain method
基于二维光子晶体中多模干涉效应(MMI)设计了一种新型的三波长波分解复用器,模拟结果表明,该结构能有效地分离1310 nm/1500 nm/1550 nm三个波段的波长.当改变该波分解复用器的相关结构参数时,该结构能拓展至其他波段.除此之外,该结构也能单独作为两波长波分解复用器对1310 nm/1550 nm实现分离.该波分解复用结构对三个波长的透射率均在91%以上.与此同时,借助于平面波展开法及时域有限差分法,对光波在该结构的传播效率及传播行为进行了计算及模拟.
基于二維光子晶體中多模榦涉效應(MMI)設計瞭一種新型的三波長波分解複用器,模擬結果錶明,該結構能有效地分離1310 nm/1500 nm/1550 nm三箇波段的波長.噹改變該波分解複用器的相關結構參數時,該結構能拓展至其他波段.除此之外,該結構也能單獨作為兩波長波分解複用器對1310 nm/1550 nm實現分離.該波分解複用結構對三箇波長的透射率均在91%以上.與此同時,藉助于平麵波展開法及時域有限差分法,對光波在該結構的傳播效率及傳播行為進行瞭計算及模擬.
기우이유광자정체중다모간섭효응(MMI)설계료일충신형적삼파장파분해복용기,모의결과표명,해결구능유효지분리1310 nm/1500 nm/1550 nm삼개파단적파장.당개변해파분해복용기적상관결구삼수시,해결구능탁전지기타파단.제차지외,해결구야능단독작위량파장파분해복용기대1310 nm/1550 nm실현분리.해파분해복용결구대삼개파장적투사솔균재91%이상.여차동시,차조우평면파전개법급시역유한차분법,대광파재해결구적전파효솔급전파행위진행료계산급모의.
A novel wavelength division demultiplexer (WDDM) based on the multi-mode interference effect (MMI) in 2D photonic crystal is presented,and it can separate three wavelengths effectively.This device takes 1310 nm/1500 nm/1550 nm for example here,and it can be extended to other wavelengths by changing the structure parameters.In addition,it can be also used to realize the separation for 1310 nm/1550 nm alone.The structure of WDDM composes of three MMI regions,which can make two wavelengths get through and one wavelength reflect back.The transmissions are above 91%.At the same time,by virtue of the plane wave expansion (PWE) and finite-difference time-domain method (FDTD),we simulate the performance.