Fiber Optics - From Fundamentals to Industrial Applications 2019
DOI: 10.5772/intechopen.82522
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Delta-Sigma Digitization and Optical Coherent Transmission of DOCSIS 3.1 Signals in Hybrid Fiber Coax Networks

Abstract: We first demonstrate delta-sigma digitization and coherent transmission of data over cable system interface specification (DOCSIS) 3.1 signals in a hybrid fiber coax (HFC) network. Twenty 192-MHz DOCSIS 3.1 channels with modulation up to 16384QAM are digitized by a low-pass cascade resonator feedback (CRFB) delta-sigma analog-to-digital converter (ADC) and transmitted over 80 km fiber using coherent single-λ 128-Gb/s dual-polarization (DP)-QPSK and 256-Gb/s DP-16QAM optical links. Both one-bit and two-bit delt… Show more

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Cited by 30 publications
(7 citation statements)
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“…This includes, for example, passive optical networks 28 . Another short-distance lowbandwidth application is hybrid fibre coax systems 29 . The model is in its present form not intended for long-haul or wavelengthdivision-multiplexed systems.…”
Section: Discussionmentioning
confidence: 99%
“…This includes, for example, passive optical networks 28 . Another short-distance lowbandwidth application is hybrid fibre coax systems 29 . The model is in its present form not intended for long-haul or wavelengthdivision-multiplexed systems.…”
Section: Discussionmentioning
confidence: 99%
“…We have demonstrated an SDoF-based distributed antenna system as a possible solution for the fronthaul network deployment for the high-capacity hot-spot scenario of the 5G enhanced mobile broadband (eMBB) service [24]. It is also worth mentioning that sigma-delta modulated signals have higher bit error rate tolerance as evaluated in [25] and [26].…”
Section: A Radio-frequency Signal Over Fiber (Rfof)mentioning
confidence: 97%
“…To solve this problem, delta-sigma modulation is proposed, in which the noise transfer function is specifically designed to reduce the quantization noise within the signal bandwidth [23][24][25][26][27][28][29]. The disadvantage is that the delta-sigma modulation requires an ultra-high oversampling rate.…”
Section: Introductionmentioning
confidence: 99%