59-nm trimming of center wavelength of ARROW-type vertical coupler filter by UV irradiation
59-nm trimming of center wavelength of ARROW-type vertical coupler filter by UV irradiation
复制标题
通过 UV 照射对 ARROW 型垂直耦合滤光片的中心波长进行 59 nm 微调
DOI：
10.1109/68.748234
复制
发表时间：
1999
影响因子：
2.6
通讯作者：
Y. Kokubun
中科院分区：
文献类型：
--
作者：
S. Sato;W. Pan;S. Chu;S. Endo;S. Suzuki;Y. Kokubun
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An antiresonant reflecting optical waveguide (ARROW)-type vertical coupler filter (VCF) with a polysilane cover layer is designed and fabricated to demonstrate the trimming of the center wavelength of the filter by ultraviolet (UV) irradiation. The propagation constant of the upper waveguide of the VCF was modified by UV irradiation on the polysilane cover in the presence of oxygen. The refractive index of polysilane can be adjusted from 1.448 to 1.427 by the exposure time of the UV irradiation. A wide trimming range of 59 nm (1567.5 nm to 1508.8 nm) of center wavelength is demonstrated.