Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1535043 | Optics Communications | 2013 | 10 Pages |
Abstract
Universal model and investigation are proposed for a novel 2Ã2 polymer electro-optic (EO) switch based on two-group 2N+1 vertical-turning series-coupled microrings. For realizing boxlike spectrum (drop port) as well as low crosstalk and insertion loss, resonance order and coupling gaps are optimized. The microring resonator (MRR) switches with Nâ¥1 reveal favorable boxlike flat spectrum as when compared with the simple device with only one microring (N=0), and 1â¤Nâ¤5 is required for obtaining <â¼5 dB insertion loss under cross state (U=0 V). For the five MRR switches (N=1-5), the free-spectrum range (FSR) is â¼12 nm (â¼1500 GHz), the switching voltage is about 4.0 V, their crosstalk are <â51 dB under cross state and <â28.2 dB under bar state, and their insertion losses are <5.12 dB under cross state and <0.24 dB under bar state. The devices also have ultra-compact footprint size of 0.325-0.652 mm, which is only 1/10-1/5 of those of our previously reported polymer EO switches based on directional coupler (DC) or Mach-Zehnder interferometer (MZI) structures. Consequently, the proposed switching element can be highly integrated onto optoelectronic chips for constructing large switching arrays.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Chuan-Tao Zheng, Qian-Qian Luo, Xiao-Liang Huang, Lei Liang, Yi-Ding Wang,