Polarization-independent optical directional coupler based on slot waveguides

被引:84
作者
Fujisawa, T [1 ]
Koshiba, M [1 ]
机构
[1] Hokkaido Univ, Div Media & Network Technol, Sapporo, Hokkaido 0600814, Japan
关键词
D O I
10.1364/OL.31.000056
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A polarization-independent optical directional coupler based on slot waveguides is proposed and analyzed by using rigorous full-vectorial analysis methods based on a finite-element scheme. Properly choosing materials and structural parameters makes the coupling length for quasi-TE modes become equal to that for quasi-TM modes. Tolerances to operating wavelength and structural parameters are also discussed. The proposed coupler can be used for highly integrated optical circuits without polarization diversity schemes. (c) 2006 Optical Society of America.
引用
收藏
页码:56 / 58
页数:3
相关论文
共 10 条
[1]   Guiding and confining light in void nanostructure [J].
Almeida, VR ;
Xu, QF ;
Barrios, CA ;
Lipson, M .
OPTICS LETTERS, 2004, 29 (11) :1209-1211
[2]   High-performance all-optical silicon microswitch [J].
Barrios, CA .
ELECTRONICS LETTERS, 2004, 40 (14) :862-863
[3]   Finite element characterization of chromatic dispersion in nonlinear holey fibers [J].
Fujisawa, T ;
Koshiba, M .
OPTICS EXPRESS, 2003, 11 (13) :1481-1489
[4]   Full-vector finite-element beam propagation method for three-dimensional nonlinear optical waveguides [J].
Fujisawa, T ;
Koshiba, M .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2002, 20 (10) :1876-1884
[5]   Wavelength division multiplexing and demultiplexing with photonic crystal waveguide couplers [J].
Koshiba, M .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2001, 19 (12) :1970-1975
[6]   Microphotonics devices based on silicon microfabrication technology [J].
Tsuchizawa, T ;
Yamada, K ;
Fukuda, H ;
Watanabe, T ;
Takahashi, J ;
Takahashi, M ;
Shoji, T ;
Tamechika, E ;
Itabashi, S ;
Morita, H .
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2005, 11 (01) :232-240
[7]   Saturation effects in dynamic electrowetting [J].
Wang, KL ;
Jones, TB .
APPLIED PHYSICS LETTERS, 2005, 86 (05) :1-3
[8]   Integrated mode-evolution-based polarization splitter [J].
Watts, MR ;
Haus, HA ;
Ippen, EP .
OPTICS LETTERS, 2005, 30 (09) :967-969
[9]   Integrated mode-evolution-based polarization rotators [J].
Watts, MR ;
Haus, HA .
OPTICS LETTERS, 2005, 30 (02) :138-140
[10]   Experimental demonstration of guiding and confining light in nanometer-size low-refractive-index material [J].
Xu, QF ;
Almeida, VR ;
Panepucci, RR ;
Lipson, M .
OPTICS LETTERS, 2004, 29 (14) :1626-1628