Silicon-based on-chip diplexing/triplexing technologies and devices


Wavelength-division-multiplexing (WDM) transceiver filters are one of the most essential components for realizing the fiber-to-the-home (FTTH) networks. In recent years, silicon photonics have provided a very attractive platform to build ultra-compact photonic integrated devices with CMOS-compatible processes. In this review, we focus on the recent progresses on diplexers/triplexers based on multimode interference couplers (MMI), and directional couplers (DC). The polarization-insensitive devices are also discussed.

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This work was supported in part by National Key Research and Development Program (Grant No. 2016YFB0402502) and National Natural Science Foundation of China (Grant Nos. 61675178, 61377023).

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Correspondence to Yaocheng Shi.

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Shi, Y., Chen, J. & Xu, H. Silicon-based on-chip diplexing/triplexing technologies and devices. Sci. China Inf. Sci. 61, 080402 (2018).

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  • wavelength division multiplexer
  • multimode interference coupler
  • directional coupler
  • fiber-to-the-home
  • silicon waveguide