Proposal for a Grating Waveguide Serving as Both a Polarization Splitter and an Efficient Coupler for Silicon-on-Insulator Nanophotonic Circuits

被引：79
作者：
Tang, Yongbo [1 ,2 ]
Dai, Daoxin [1 ,2 ]
He, Sailing [1 ,2 ,3 ]
机构：
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Hangzhou 310058, Zhejiang, Peoples R China
[2] Royal Inst Technol, Joint Res Ctr Photon, S-10044 Stockholm, Sweden
[3] Royal Inst Technol, Sch Elect Engn, Div Electromagnet Engn, S-10044 Stockholm, Sweden
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 1-4期
基金：
美国国家科学基金会;
关键词：
Grating couplers; integrated optics; polarization splitters; silicon-on-insulator (SOI) technology; waveguides; COMPACT;
D O I：
10.1109/LPT.2008.2010528
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A grating waveguide is introduced and designed to serve as both a polarization splitter and an efficient vertical coupler between a fiber and a silicon-on-insulator (SOI) nanophotonic waveguide. Through this grating waveguide, the light from the fiber can be efficiently coupled into an SOI chip where the two orthogonally polarized waves are separated to travel towards the opposite directions along the waveguide. According to our simulations, the optimized structure can give a high coupling efficiency of about 50% for both polarizations, as well as a large bandwidth of over 70 nm and a very low polarization crosstalk below -22 dB at the output ports.
引用
收藏
页码：242 / 244
页数：3
相关论文
共 13 条
[1]   Nanotaper for compact mode conversion [J].
Almeida, VR ;
Panepucci, RR ;
Lipson, M .
OPTICS LETTERS, 2003, 28 (15) :1302-1304
[2]   Polarization-transparent microphotonic devices in the strong confinement limit [J].
Barwicz, Tymon ;
Watts, Michael R. ;
Popovic, Milos A. ;
Rakich, Peter T. ;
Socci, Luciano ;
Kartner, Franz X. ;
Ippen, Erich P. ;
Smith, Henry I. .
NATURE PHOTONICS, 2007, 1 (01) :57-60
[3]   Optical modelling of photonic crystals and VCSELs using eigenmode expansion and perfectly matched layers [J].
Bienstman, P ;
Baets, R .
OPTICAL AND QUANTUM ELECTRONICS, 2001, 33 (4-5) :327-341
[4]   A polarization-diversity wavelength duplexer circuit in silicon-on-insulator photonic wires [J].
Bogaerts, Wim ;
Taillaert, Dirk ;
Dumon, Pieter ;
Van Thourhout, Dries ;
Baets, Roel .
OPTICS EXPRESS, 2007, 15 (04) :1567-1578
[5]   BURIED-OXIDE SILICON-ON-INSULATOR STRUCTURES .2. WAVE-GUIDE GRATING COUPLERS [J].
EMMONS, RM ;
HALL, DG .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1992, 28 (01) :164-175
[6]   Silicon photonic circuit with polarization diversity [J].
Fukuda, Hiroshi ;
Yamada, Koji ;
Tsuchizawa, Tai ;
Watanabe, Toshifumi ;
Shinojima, Hiroyuki ;
Itabashi, Sei-ichi .
OPTICS EXPRESS, 2008, 16 (07) :4872-4880
[7]   Ultra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides [J].
McNab, SJ ;
Moll, N ;
Vlasov, YA .
OPTICS EXPRESS, 2003, 11 (22) :2927-2939
[8]   High efficiency diffractive grating couplers for interfacing a single mode optical fiber with a nanophotonic silicon-on-insulator waveguide circuit [J].
Roelkens, G. ;
Vermeulen, D. ;
Van Thourhout, D. ;
Baets, R. ;
Brision, S. ;
Lyan, P. ;
Gautier, P. ;
Fedeli, J. -M. .
APPLIED PHYSICS LETTERS, 2008, 92 (13)
[9]   Silicon-on-insulator ultra-compact duplexer based on a diffractive grating structure [J].
Roelkens, Guenther ;
Van Thourhout, Dries ;
Baets, Roel .
OPTICS EXPRESS, 2007, 15 (16) :10091-10096
[10]   A compact two-dimensional grating coupler used as a polarization splitter [J].
Taillaert, D ;
Chong, H ;
Borel, PI ;
Frandsen, LH ;
De La Rue, RM ;
Baets, R .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2003, 15 (09) :1249-1251
12