Demonstration of 640 Gbps/160 Gbps WDM-PON system based on colorless ONUs
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Abdelfettah Chenika
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Mokhtaria Derkaoui
Abstract
The Wavelength Division Multiplexing Passive Optical Network (WDM-PON) is considered a highly promising option for next-generation optical access networks. In this work, we propose and demonstrate a WDM-PON network architecture using colorless Optical Network Units (ONUs). Our design employs a single broadband source (comb source) to generate the optical carriers required for bidirectional transmission. We demonstrate the feasibility of implementing a WDM-PON over a 30 km standard single-mode fiber (SSMF-28), with downstream transmission at 640 Gbps and upstream at 160 Gbps. The proposed method involves comparing two WDM-PON networks with 16 channels, which have similar characteristics. In the first system, we use 32 carriers – 16 for downstream and 16 for upstream – while in the second system, only 16 carriers are used for both directions. In addition, this configuration allows us to easily double the total bandwidth of the network by increasing the number of ONUs to 32 and incorporating the unused carriers (the 16 other unused carriers from the second configuration).
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: AI, it’s used for enhance existing figures.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
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