An out-of-plane grating coupler for efficient butt-coupling between compact planar waveguides and single-mode fibers

被引:486
作者
Taillaert, D [1 ]
Bogaerts, W
Bienstman, P
Krauss, TF
Van Daele, P
Moerman, I
Verstuyft, S
De Mesel, K
Baets, R
机构
[1] Univ Ghent, IMEC, Dept Informat Technol, B-9000 Ghent, Belgium
[2] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland
关键词
integrated optics; optical planar waveguide components; waveguide coupler;
D O I
10.1109/JQE.2002.1017613
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
We have designed and fabricated an out-of-plane coupler for butt-coupling from fiber to compact planar waveguides. The coupler is based on a short second-order grating or photonic crystal, etched in a waveguide with a low-index oxide cladding. The coupler is optimized using mode expansion-based simulations. Simulations using a 2-D model show that up to 74% coupling efficiency between single-mode fiber and a 240-nm-thick GaAs-AlOx waveguide is possible. We have measured 19% coupling efficiency on test structures.
引用
收藏
页码:949 / 955
页数:7
相关论文
共 17 条
[1]   Effects of grating heights on highly efficient unibond SOI waveguide grating couplers [J].
Ang, TW ;
Reed, GT ;
Vonsovici, A ;
Evans, AGR ;
Routley, PR ;
Josey, MR .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2000, 12 (01) :59-61
[2]   A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES [J].
BERENGER, JP .
JOURNAL OF COMPUTATIONAL PHYSICS, 1994, 114 (02) :185-200
[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]   Analysis of cylindrical waveguide discontinuities using vectorial eigenmodes and perfectly matched layers [J].
Bienstman, P ;
Derudder, H ;
Baets, R ;
Olyslager, F ;
De Zutter, D .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49 (02) :349-354
[5]   Highly directional grating outcouplers with tailorable radiation characteristics [J].
Eriksson, N ;
Hagberg, M ;
Larsson, A .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1996, 32 (06) :1038-1047
[6]   High efficiency surface emitting lasers using blazed grating outcouplers [J].
Hagberg, M ;
Eriksson, N ;
Larsson, A .
APPLIED PHYSICS LETTERS, 1995, 67 (25) :3685-3687
[7]  
Hardeland Ruediger, 1996, P25
[8]  
Harrington R. F., 1961, TIME HARMONIC ELECTR
[9]  
Joannopoulos J. D., 1995, PHOTONIC CRYSTALS MO
[10]   Waveguiding in planar photonic crystals [J].
Loncar, M ;
Nedeljkovic, D ;
Doll, T ;
Vuckovic, J ;
Scherer, A ;
Pearsall, TP .
APPLIED PHYSICS LETTERS, 2000, 77 (13) :1937-1939