Bending Efficiency of Bent Multiple-Slot Waveguides
Hamid Keivani1, Alireza Kargar2,1
1Department of Electrical and Electronic Engineering, Islamic Azad University, Kazerun Branch, Kazerun, Iran2Department of Electrical and Computer Engineering, Shiraz University, Shiraz 7134851156, Iran
Bending Efficiency of Bent Multiple-Slot Waveguides
Hamid Keivani1, Alireza Kargar2,1
1Department of Electrical and Electronic Engineering, Islamic Azad University, Kazerun Branch, Kazerun, Iran2Department of Electrical and Computer Engineering, Shiraz University, Shiraz 7134851156, Iran
摘要The bending efficiency of three-dimensional bent multiple-slot waveguides is studied by applying a combined method of effective-index and modified transfer-matrix methods. The effects of asymmetric structure, asymmetric slots, and asymmetric middle strips on the bending efficiency are investigated. We show that the bending efficiency can be improved by the use of asymmetric structures and asymmetric middle strips. The bending efficiency of different slot waveguides (up to quintuple-slot structure) is compared. It is revealed that although the single-slot waveguide in general provides the lowest bending loss for the same waveguide parameters, it is possible that the multiple-slot waveguide can present a lower bending loss than the single-slot one.
Abstract：The bending efficiency of three-dimensional bent multiple-slot waveguides is studied by applying a combined method of effective-index and modified transfer-matrix methods. The effects of asymmetric structure, asymmetric slots, and asymmetric middle strips on the bending efficiency are investigated. We show that the bending efficiency can be improved by the use of asymmetric structures and asymmetric middle strips. The bending efficiency of different slot waveguides (up to quintuple-slot structure) is compared. It is revealed that although the single-slot waveguide in general provides the lowest bending loss for the same waveguide parameters, it is possible that the multiple-slot waveguide can present a lower bending loss than the single-slot one.
[1] Hochberg M et al 2007 Opt. Express 15 8401 [2] Baehr-Jones T et al 2005 Appl. Phys. Lett. 86 081101 [3] Xiao J, Liu X and Sun X 2008 Appl. Opt. 472687 [4] Barrios C A et al 2007 Opt. Lett. 32 3080 [5] Barrios C A et al 2008 Opt. Lett. 33 708 [6] Andrew P A et al 2006 Opt. Express 14 9197 [7] Ma C et al 2008 Opt. Express 16 14330 [8] Sun R, Dong P et al 2007 Opt. Express 15 17967 [9] Feng N-N et al 2006 IEEE J. Quantum Electron. 42 885 [10] Vivien L et al 2008 Opt. Express 16 17237 [11] Olio F D and Passaro V M N 2007 Opt. Express 15 4977 [12] Mullner P and Hainberger R 2006 IEEE Phot. Techn.Lett. 18 2557 [13] Chao C-Y 2007 J. Opt. Soc. Am. B 24 2373 [14] Robinson J T et al 2008 Opt. Express 21 16659
2009, Vol. 26 
