Song Yi, Wang Jing, Li Qiang, Yan Min, Qiu Min
Laboratory of Photonics and Microwave Engineering, School of Information and Communication Technology, Royal Institute of Technology, Electrum 229, 164 40 Kista, Sweden.
Opt Express. 2010 Jun 7;18(12):13173-9. doi: 10.1364/OE.18.013173.
Efficient broadband coupling of light between a dielectric waveguide and a hybrid plasmonic waveguide is investigated theoretically. A plasmonic linear taper is used as a coupler which connects the two types of waveguides. Broadband coupling is realized by such a compact plasmonic taper with a length of only 0.4 microm, which achieves a coupling efficiency of 70% (1.5 dB) at the 1.55 microm telecommunication wavelength.
从理论上研究了介质波导与混合等离子体波导之间光的高效宽带耦合。使用等离子体线性锥作为连接两种波导的耦合器。通过这种长度仅为0.4微米的紧凑型等离子体锥实现宽带耦合，在1.55微米电信波长处实现了70%（1.5分贝）的耦合效率。
