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We propose a wavelength(λ)-tuning sequence without downstream data-frame loss for dynamic-wavelength allocation in WDM/TDM-PONs. Methods for determining frame-launching time as well as buffering time before ONUs start λ-tuning are verified through demonstration using MAC boards.
We propose a ranging method for λ-tunable WDM/TDM-PONs enabling dynamic wavelength and bandwidth allocation with accurate round-trip times without re-ranging regardless of changes in wavelength assignment. Its effect on upstream bandwidth allocation is theoretically evaluated.
We propose a high power λ-tunable burst-mode transmitter with an output of over +10 dBm using a synchronized gain-clamping booster SOA, and demonstrate a 40-dB loss budget and 40-km reach symmetric 40-Gbit/s λ-tunable WDM/TDM-PON.
We propose a time and frequency synchronized λ-tunable WDM/TDM-PON with a synchronization method using timestamps. We clarify requirements of synchronization accuracy for mobile backhaul networks numerically and confirm its feasibility experimentally.
This paper proposes a configuration and a dynamic wavelength and bandwidth allocation for the upstream signal in 40 Gbit/s λ-tunable stacked-WDM/TDM-PON. An upstream transmission experiment with 10 Gbit/s burst-mode receivers and fast-switching tunable filters is first demonstrated.
A WDM/TDM-PON system employing a dynamic wavelength and bandwidth-allocation technique is proposed for future flexible optical-access networks. The system achieves high utilization efficiency for the total bandwidth and smooth upgrade to higher bandwidth-guaranteed services.
We propose a 10-Gbit/s TDM-PON and an over 40-Gbit/s WDM/TDM-PON using our operational expenditure effective burst-mode technologies, which improve the interoperability and smoothness of migration to higher-speed PON systems.
A three-level-control electronic dispersion compensation (EDC) technique using a simple eye monitor detecting the duty ratios of the received signal is proposed and demonstrated. The EDC prototype can compensate for the chromatic dispersion of 40 km singlemode fibre and realise a cost-effective 10 Gbit/s transceiver utilising a directly modulated laser diode for access networks.
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