On-Chip Mode-Division Multiplexing Transmission With Modal Crosstalk Mitigation Employing Low-Coherence Matched Detection

We experimentally demonstrate on-chip modal crosstalk mitigation over two mode-division multiplexing (MDM) integrated circuits supporting four and eleven waveguide modes employing low-coherence matched detection. 30-Gbaud 8-PSK mode-multiplexed signal is successfully transmitted over the circuits wi...

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Bibliographic Details
Published in:Journal of lightwave technology 2021-04, Vol.39 (7), p.2008-2014
Main Authors: Huang, Yetian, He, Yu, Chen, Haoshuo, Huang, Hanzi, Zhang, Yong, Ye, Nan, Fontaine, Nicolas K., Ryf, Roland, Song, Yingxiong, Zhang, Qianwu, Su, Yikai, Wang, Min
Format: Article
Language:English
Subjects:
Coherence
Coherent communications
Crosstalk
Integrated circuits
integrated optics devices
Multiplexing
Optical crosstalk
Optical interconnects
Optical waveguides
Phase shift keying
Signal processing
System-on-chip
Waveguides
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Summary:We experimentally demonstrate on-chip modal crosstalk mitigation over two mode-division multiplexing (MDM) integrated circuits supporting four and eleven waveguide modes employing low-coherence matched detection. 30-Gbaud 8-PSK mode-multiplexed signal is successfully transmitted over the circuits without using multiple-in-multiple-output (MIMO) processing under a maximum modal crosstalk of 10 dB. Ten-mode-multiplexed on-chip transmission achieves a total capacity of 900 Gbit/s. This work shows the feasibility of using high-order modes in on-chip MDM transmission for future high-capacity optical interconnects.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2020.3044079