標題: Numerical Study of Transmission Improvement in a Photonic Crystal Waveguide Bend by Mode-Matching Technique
作者: Lu, Ming-Feng
Yang, Yu-Lin
Huang, Yang-Tung
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Bound state;cavity mode;mode matching;photonic crystal (PC);transmission;waveguide
公開日期: 1-Nov-2008
摘要: An approach to improve the transmission efficiency of photonic crystal (PC) waveguide bends through maximization of the overlap integral of fields between the straight waveguide and the waveguide bend is presented. By shifting the lattice points around the bend corner, the bound state in the waveguide bend and the guided mode in the straight waveguide are matching, and the transmission of a PC waveguide bend can be significantly improved. The transmission of a 120 degrees PC waveguide bend with mode matching is dramatically improved from 5.7% to 87.5%. The bound state in a PC waveguide bend is similar to a cavity mode; therefore, the PC waveguide bend performs a narrowband transmission. Frequency shift of the spectra for a PC waveguide bend due to this lattice shifting can also be observed.
URI: http://dx.doi.org/306336963,12,1
http://hdl.handle.net/11536/8206
ISSN: 1041-1135
DOI: 306336963,12,1
期刊: IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 20
Issue: 21-24
起始頁: 2114
結束頁: 2116
Appears in Collections:Articles


Files in This Item:

  1. 000261847800118.pdf