Digital subcarrier multiplexing (DSCM) is a frequency division multiplexing (FDM) technique which makes use of multiple digitally created subcarriers on each wavelength. This circuit-based approach combined with elastic optic networking has the potential to provide high bandwidth efficiency, sub-wavelength level flexible data-rate granularity, and electronic compensation of transmission impairments. We present our study and testbed development about a DSCM crossconnect which allows dynamic bandwidth, frequency and power level assignment of each individual digital subcarrier channel in order to achieve the desired data rate granularity as well as the quality of transmission.
Tong Xu, Andrea Fumagalli, and Rongqing Hui, "Dynamic optical networks based on digital subcarrier multiplexing ," Proc. SPIE 10560, Metro and Data Center Optical Networks and Short-Reach Links, 105600N (Presented at SPIE OPTO: January 31, 2018; Published: 30 January 2018); https://doi.org/10.1117/12.2294083.
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