| Optical filter based on contra-directional waveguide coupling in a 2D photonic crystal with square lattice of dielectric rods | |
| Xu, ZF ; Wang, JG ; He, QS ; Cao, LC ; Su, P ; Jin, GF | |
| 2010-05-10 ; 2010-05-10 | |
| 关键词 | DESIGN SLABS Optics |
| 中文摘要 | A coupler-type optical filter in 2D photonic crystal (PhC) with square lattice of dielectric rods in air is presented. The reduced-index and increased-index waveguides of filter have dispersion curves with opposite slopes to realize contra-directional coupling, and the point of anti-crossing is designed below the light line to avoid vertical radiation. The filter has a broad operable bandwidth due to the absence of mini stop bands. The transmission properties are analyzed using coupled modes theory (CMT) and simulated using the finite-difference time-domain (FDTD) method. The results show that a filtering bandwidth of 4 nm can be achieved in the range of 1500 similar to 1600 nm, and over 83% drop coefficient is obtained. (C) 2005 Optical Society of America. |
| 语种 | 英语 ; 英语 |
| 出版者 | OPTICAL SOC AMER ; WASHINGTON ; 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/24469]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Xu, ZF,Wang, JG,He, QS,et al. Optical filter based on contra-directional waveguide coupling in a 2D photonic crystal with square lattice of dielectric rods[J],2010, 2010. |
| APA | Xu, ZF,Wang, JG,He, QS,Cao, LC,Su, P,&Jin, GF.(2010).Optical filter based on contra-directional waveguide coupling in a 2D photonic crystal with square lattice of dielectric rods.. |
| MLA | Xu, ZF,et al."Optical filter based on contra-directional waveguide coupling in a 2D photonic crystal with square lattice of dielectric rods".(2010). |
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