GEOMETRICAL-OPTICS DESIGN AND ABERRATION ANALYSIS OF A FOCUSING GRATING COUPLER

被引:4
作者
BRAAT, JJM [1 ]
LAURIJS, MOE [1 ]
机构
[1] PHILIPS RES LABS,5600 JA EINDHOVEN,NETHERLANDS
关键词
GRATING COUPLERS; OPTICAL WAVE-GUIDES; DIFFRACTION; GEOMETRICAL OPTICS; ABERRATIONS;
D O I
10.1117/12.163187
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The geometrical optics design of a focusing grating coupler (FGC) is discussed for the situation in which the shape of the guided and free-space pencil and the diffraction geometry are general. A function that describes the so-called optical path-length defect in a general point of the FGC yields the spatial frequency components after differentiation. The wavefront diffracted by the FGC is analyzed at large values of the numerical aperture of the free-space wave by means of ray tracing. Spatial variation of the wave amplitude over the wavefront due to the progressive diffraction of the guided wave is not taken into account. Tolerances on the wavelength drift of the source, the waveguide properties, and the source position are given for an integrated optical disk pickup equipped with an FGC.
引用
收藏
页码:1037 / 1043
页数:7
相关论文
共 10 条
[1]  
BORN M, 1989, PRINCIPLES OPTICS, P197
[2]  
BRAAT J, 1992, P SPIE, V1780, P420
[3]   WAVEGUIDE GRATING LENSES FOR OPTICAL COUPLERS [J].
HATAKOSHI, G ;
FUJIMA, H ;
GOTO, K .
APPLIED OPTICS, 1984, 23 (11) :1749-1753
[4]   CALCULATION AND EXPERIMENTAL-VERIFICATION OF TWO-DIMENSIONAL FOCUSING GRATING COUPLERS [J].
HEITMANN, D ;
ORTIZ, C .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1981, 17 (07) :1257-1263
[5]  
PRESS WH, 1989, NUMERICAL RECIPES, P151
[6]  
SHIKAI M, 1989, AUT ANN M JPN SOC AP
[7]   ABERRATION CHARACTERIZATIONS OF A FOCUSING GRATING COUPLER IN AN INTEGRATED-OPTIC DISK PICKUP DEVICE [J].
URA, S ;
SUHARA, T ;
NISHIHARA, H .
APPLIED OPTICS, 1987, 26 (22) :4777-4782
[8]   AN INTEGRATED-OPTIC DISK PICKUP DEVICE [J].
URA, S ;
SUHARA, T ;
NISHIHARA, H ;
KOYAMA, J .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1986, 4 (07) :913-918
[9]  
Ura S., 1985, Transactions of the Institute of Electronics and Communication Engineers of Japan, Part C, VJ68C, P803
[10]  
WELFORD WT, 1986, ABERRATIONS OPTICAL, P78