Tunable Optical Add/Drop Filter for CWDM Systems Using Photonic Crystal Ring Resonator

被引：7
|
作者：
Soma, Savita [1 ]
Sonth, Mahesh V. [2 ]
Gowre, Sanjaykumar C. [3 ]
机构：
[1] GNDEC, ECE Dept, Bidar 585403, Karnataka, India
[2] CMR Tech Campus, Hyderabad 501401, Telangana, India
[3] BKIT, ECE Dept, Bhalki 585328, Karnataka, India
来源：
JOURNAL OF ELECTRONIC MATERIALS | 2019年 / 48卷 / 11期
关键词：
Photonic crystal ring resonator (PCRR); resonant wavelength; photonic bandgap; add; drop filter; DROP FILTERS;
D O I：
10.1007/s11664-019-07572-1
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper an add/drop filter based on a two dimensional (2D) photonic crystal ring resonator (PCRR) is proposed and its performance is studied. This device is comprised of a hexagonal PCRR between two parallel waveguides formed by creating line defects in a 2D lattice structure with an array of 20 x 20 Si (Silicon) rods in air host. The lattice constant a is 636 nm and the radius of silicon (Si) rods r is 0.2a. The size of the add/drop filter is 6 mu m x 6 mu m. We have achieved nearer to 100% dropping efficiency when the wavelength (lambda) of the optical input signal is 1.55 mu m. Optical signal can be made to drop at a different port by varying its wavelength or radius of Si rods. Simulation of the device is performed using a licensed RSoft FullWAVE tool based on a finite difference time domain (FDTD) simulator. The proposed structure could be used as an add/drop filter in the wavelength division multiplexing.
引用
收藏
页码：7460 / 7464
页数：5
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