1. Optimal Design of Narrowband Filter in Oblique Incidence Based on Genetic Arithmetic
- Author
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尹娟娟 Yin Juanjuan, 俞侃 Yu Kan, 包佳祺 Bao Jiaqi, 张晓丹 Zhang Xiao-dan, and 廖剑锋 Liao Jian-feng
- Subjects
Optimal design ,Materials science ,genetic structures ,business.industry ,Polarization (waves) ,Atomic and Molecular Physics, and Optics ,Wavelength ,Optics ,Narrowband ,Genetic arithmetic ,sense organs ,Rectangle ,Oblique incidence ,Thin film ,business - Abstract
According to the polarization characteristics of the thin film narrowband filter,the stack of narrowband filter used in oblique incidence is provided based on the genetic arithmetic in this paper.A 100GHz five-cavity thin film filter used in 18° incidence is optimized based on the programme.The stack can eliminate the phenomenon of polarization light central wavelength separation used in oblique incidence and it has low polarization dependent loss.It can be used as an angle-tuned thin film filter for wavelength modulation.Compared with the thin film filter stack obtained by needle arithmetic design,it has higher rectangle degree,larger wavelength tunable range and less polarization dependent loss.The experimental results show it meets the demand of design and its tunable range is more than 25 nm.
- Published
- 2013
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