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Coarse Wavelength Division (De)Multiplexer Based on Cascaded Topology Optimized Wavelength Filters

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Abstract

We propose a coarse wavelength division (de)multiplexer by cascading wavelength filters. Assisted by topology optimization, four compact wavelength filters centered at different wavelengths are designed with less than -0.7 dB insertion loss, respectively.

© 2021 The Author(s)

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