We propose a design method based on coupling mode theory for high-fabrication-tolerance mode (de)multiplexer. A TE0&TE1 mode multiplexer with <1.5 dB insertion loss, (1.5∼1.6) µm operation bandwidth and 20 nm fabrication tolerance is de-signed. © 2019 The Author(s)
© 2019 The Author(s)
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