High resolution three-port filter in two dimensional photonic crystal slabs.

  title={High resolution three-port filter in two dimensional photonic crystal slabs.},
  author={Cheng Ren and Jie Tian and Shuai Feng and Haihua Tao and Yazhao Liu and Kun Ren and Zhiyuan Li and Bingying Cheng and Daozhong Zhang and Haifang Yang},
  journal={Optics express},
  volume={14 21},
An in-plane, three-port filter consisting of input/output waveguides and two point-defect cavities in a 2D PC slab is designed and fabricated, where a new feedback method is introduced, and its transmission properties are measured. The measured minimum output wavelength spacing between two channels is 1.5 nm, which is realized by slightly adjusting the size of the resonant cavities. The measured resonant wavelengths of two cavities agree well with the calculated ones and the quality factors of… CONTINUE READING
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