Fuzzy model for fabricating planar gratings

Rong Seng Chang, Chern Sheng Lin, Ching Piao Hu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In this paper a fuzzy model for fabricating planar-grating is given. In the model, the diffraction efficiency of the holographic grating (predicted by computer simulation) has a reasonable match with the experimentally verified results. The method can be summarized in three steps: first, a choice of the grating characteristics, which are closely related to the diffraction efficiency factors, is made; secondly, according to our experience, we construct the fuzzy matrix from the grating manufacturing parameters and the grating characteristics; finally, we use the fuzzy matrix composition to obtain the diffraction efficiency factors. Then, coupled wave theory is used to predict the diffraction efficiency. The comparisons between the results of this fuzzy model and experiments are given. It is found that the application of fuzzy set theory in grating manufacturing reduces the cost of the process and improves the quality of the grating.

Original languageEnglish
Pages (from-to)181-190
Number of pages10
JournalOptics and Laser Technology
Issue number3
StatePublished - Jun 1994


  • diffraction efficiency factors
  • fuzzy models
  • grating characteristics
  • grating manufacturing parameters


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