光子学报
光子學報
광자학보
ACTA PHOTONICA SINICA
2010年
3期
417-422
,共6页
光波导%狭缝%硅%色散特性%色散补偿
光波導%狹縫%硅%色散特性%色散補償
광파도%협봉%규%색산특성%색산보상
Optical waveguide%Slot%Silicon%Dispersion characteristics%Dispersion compensation
对硅狭缝光波导色散特性进行了数值研究.研究结果表明,在1.55 μm工作波长附近,硅狭缝光波导色散随结构参量的改变而改变,一般在-1 000 ps/(nm·km)以下,最大可达到-6 700 ps/(nm·km)左右,同时其相对色散斜率可小于0.009 nm~(-1).因此,选取合适的结构参量,硅狭缝光波导可被用于补偿高速宽带光通信链路的残余色散,且比现有的色散补偿光纤具有一定的优势.
對硅狹縫光波導色散特性進行瞭數值研究.研究結果錶明,在1.55 μm工作波長附近,硅狹縫光波導色散隨結構參量的改變而改變,一般在-1 000 ps/(nm·km)以下,最大可達到-6 700 ps/(nm·km)左右,同時其相對色散斜率可小于0.009 nm~(-1).因此,選取閤適的結構參量,硅狹縫光波導可被用于補償高速寬帶光通信鏈路的殘餘色散,且比現有的色散補償光纖具有一定的優勢.
대규협봉광파도색산특성진행료수치연구.연구결과표명,재1.55 μm공작파장부근,규협봉광파도색산수결구삼량적개변이개변,일반재-1 000 ps/(nm·km)이하,최대가체도-6 700 ps/(nm·km)좌우,동시기상대색산사솔가소우0.009 nm~(-1).인차,선취합괄적결구삼량,규협봉광파도가피용우보상고속관대광통신련로적잔여색산,차비현유적색산보상광섬구유일정적우세.
Waveguides′ dispersion characteristics are studied.The conclusion shows that if changing the slot′s structural parameters,the value of the slot waveguide′s dispersion is also changed when the optical frequency is around 1.55 μm,and the values are all smaller than -1 000 ps/(nm·km).The minimal one is about -6 700 ps/(nm·km),and its Relative Dispersion Slope is smaller than 0.009 nm~(-1).By selecting suitable slot′s structural parameters,silicon slot waveguide could be used to compensate the residual dispersion of optical communication link,and it has more advantage than DCF.
