Polarization-insensitive silicon nitride Mach-Zehnder lattice wavelength demultiplexers for CWDM in the O-band - Archive ouverte HAL Access content directly
Journal Articles Optics Express Year : 2018

Polarization-insensitive silicon nitride Mach-Zehnder lattice wavelength demultiplexers for CWDM in the O-band

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A. Bois
  • Function : Author
D. Mahgerefteh
  • Function : Author
J. Poon
  • Function : Author

Abstract

Polarization-insensitive silicon nitride (SiN) 4-channel wavelength (de)multiplexers based on Mach-Zehnder interferometer lattice filters for coarse wavelength division multiplexing (CWDM) in the O-band are demonstrated in a SiN-on-silicon photonic platform. For the bestperforming device, the insertion loss was < 2.8 dB, the inter-channel crosstalk was < -11.5 dB for a polarization scrambled input, and the passband shift between the orthogonal polarizations was < 1.5 nm. Across the 200mm wafer, the die-averaged insertion loss and maximum crosstalk were 3.1 dB and -10.6 dB, respectively. The higher-than-expected crosstalk was due to dimensional variations. This work shows the potential of SiN photonic circuits forCWDMwithout polarization diversity.

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Dates and versions

cea-02184429 , version 1 (16-07-2019)

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Cite

J. Mikkelsen, A. Bois, T. Lordello, D. Mahgerefteh, S. Menezo, et al.. Polarization-insensitive silicon nitride Mach-Zehnder lattice wavelength demultiplexers for CWDM in the O-band. Optics Express, 2018, 26 (23), pp.30076. ⟨10.1364/OE.26.030076⟩. ⟨cea-02184429⟩
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