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

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Abstract

We report the optimization of reconstruction algorithm and experiment for an integrated arbitrary filter. A 43-notch filter near 1550 nm is implemented with an ultra-low-loss Si3N4/SiO2 spiral waveguide. All notches have uniform depths/widths of about 20 dB/0.2 nm.

© 2020 The Author(s)

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