16 November 2010 Ultracompact channel filters based on race-track photonic crystal ring resonators
Author Affiliations +
We proposed a new channel drop filter (CDF) based on race-track photonic crystal ring resonator (PCRR) composed of square-lattice cylindrical silicon rods in air. Two representative scenarios, parallel and perpendicular, related to the direction of race track and bus channel waveguide, are comparably studied by using 2D finite-difference time-domain technique. A good set of parameters with adequate modal spacing can be determined by adjusting the amount and size of scatterers. By optimizing the relationship among surrounding periods, race-track ring size and coupling strength, more than 150 spectral quality factor and 93.9% dropped efficiency can be achieved at 1370-nm channel for one single race-track PCRR. These findings enhance and enrich the PCRRs as an alternative to current micro-ring resonators for ultra-compact WDM components and high density photonic integration.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaofu Xu, Xiaofu Xu, Junqin Wang, Junqin Wang, Junzhen Jiang, Junzhen Jiang, Junjun Li, Junjun Li, Xiyao Chen, Xiyao Chen, Yishen Qiu, Yishen Qiu, Zexuan Qiang, Zexuan Qiang, } "Ultracompact channel filters based on race-track photonic crystal ring resonators", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78471L (16 November 2010); doi: 10.1117/12.868378; https://doi.org/10.1117/12.868378

Back to Top