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This paper presents an automatic monitor-based tuning of an APF-based pole/zero optical filter using an external modulator. The proposed algorithm uses a modulator to tune the filter center frequency instead of a tunable laser.

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An automatic monitor-based filter tuning technique for APF-based silicon photonic filters is presented. The proposed tuning approach calibrates the initial distorted filter response due to process variation by adjusting the locations of each pole and zero to reconfigure to different bandwidths and center wavelengths.

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