Waveguide-coupled octagonal microdisk channel add-drop filters

被引：25

作者：

Li, C ^{[1
]}

Ma, N ^{[1
]}

Poon, AW ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

OPTICS LETTERS | 2004年 / 29卷 / 05期

关键词：

D O I：

10.1364/OL.29.000471

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report planar waveguide-coupled octagonal microdisk channel add-drop filters on silicon nitride-on-silica substrates. Using ray optics, we show that discrete octagonal cavities have wave-front-matched four- and eight-bounce ray orbits. From a planar waveguide-coupled 50-mum-sized octagonal microdisk filter, our experiment demonstrates TM-polarized eight-bounce modes with a coupling efficiency of similar to56%, Q approximate to 1150, and a finesse of similar to5. Using the two-dimensional finite-difference time-domain method, we obtain qualitative agreement between measurement and simulation of a smaller-sized waveguide-coupled octagonal microdisk filter. (C) 2004 Optical Society of America.

引用

页码：471 / 473

页数：3

共 7 条

[1] Laterally coupled InP-based single-mode microracetrack notch filter [J].