Abstract

We proposed novel 16λ demultiplexer based on cascaded connection of silicon-nanowire waveguide type delayed interferometric filters and arrayed waveguide gratings, and experimentally verified 100-GHz-spaced bandpass filtering operation with nearly identical insertion loss (<6 dB) and low crosstalk (<−19.5 dB to <−34.6 dB for a single channel, <−12.7 dB for entire output channels). We also demonstrated polarization diversified operation with 32 Gbps non-return-to-zero (NRZ) signal transmissions in C-band range. We also verified the operation of 140-GHz-spaced bandpass filtering in O-band spectral range.

Silicon-wire optical demultiplexers based on multistage delayed Mach–Zehnder interferometers for higher production yield

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Flat-topped and low loss silicon-nanowire-type optical MUX/DeMUX employing multi-stage microring resonator assisted delayed Mach-Zehnder interferometers

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Broadband 1×8 channel silicon-nanowire-waveguide WDM filter based on point-symmetric Mach-Zehnder interferometric optical couplers in the O-band spectral regime

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OSA Continuum 2(12) 3564-3575 (2019)

Polarization-insensitive silicon nitride arrayed waveguide grating

Qi Han, Jonathan St-Yves, Yuxuan Chen, Michaël Ménard, and Wei Shi
Opt. Lett. 44(16) 3976-3979 (2019)