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COMPUTER-AIDED-DESIGN OF WAVE-GUIDE GRATINGS HAVING ASYMMETRIC REFLECTIVITY SPECTRA
被引：2
作者：
WU, J
KONDO, T
ITO, R
机构：
[1] Department of Applied Physics, The University of Tokyo, Bunkyo-ku, Tokyo, 113
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
|
1993年
/
32卷
/
12A期
关键词：
WAVE-GUIDE GRATING;
OPTIMIZATION;
SIMULATED ANNEALING;
OPTICAL COMMUNICATIONS;
INTEGRATED OPTICS;
D O I：
10.1143/JJAP.32.5576
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An optimization technique for computer-aided design of waveguide gratings is developed to obtain asymmetric reflection characteristics. The optimal grating pattern is constructed by modulating the phase of a dense periodic grating with a complex-valued function. The modulation function is quantized with respect to its phase and represented by a digital vector. The optimization is carried out by simulated annealing. An example of design is presented. Better results are obtained by selecting a larger number of quantized phase levels.
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页码：5576 / 5580
页数：5
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