Design and Characterization of Arbitrary Filters with an Integrated Spiral Si3N4/SiO2 Waveguide

• DOI: 10.1364/ofc.2020.w1a.5
• Publication Date: 2020-03-06T14:30:32Z
• Authors: Yiwen Hu; Shengjie Xie; Jiahao Zhan; Yang Zhang; Sylvain Veilleux; Mario Dagenais
• Keywords: Waveguide; Waveguide filter; Characterization

We report the optimization of reconstruction algorithm and experiment for an integrated arbitrary filter. A 43-notch filter near 1550 nm is implemented with ultra-low-loss Si 3 N 4 /SiO 2 spiral waveguide. All notches have uniform depths/widths about 20 dB/0.2 nm.