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Spectrum-efficient provisioning is designed for multi-channel elastic optical networking, which exploits various modulation formats and performs compact spectrum assignment at channel basis. Our scheme achieves high spectral efficiency with fast computation independent of spectrum granularity.
We present a method to monitor single- and cascaded-splitter TDM-PON systems based on combined techniques of Optical Time-Domain Reflectometry (OTDR) and Optical Transceiver Monitoring (OTM). The method is non-invasive to data traffic flow and requires no additional functionality (hardware or software) at the Optical Network Terminals (ONT). The description of the Fiber Plant Manager (FPM) overall...
PON monitoring based on combined Optical Time Domain Reflectometry (OTDR) and Optical Transceiver Monitoring (OTM) is presented. The results on a 25-km 1:32 PON prove the concept and show ~0.02 dB accuracy with theoretical values.
This paper covers the current standardized 10G PON systems: XG-PON1 from ITU (G.987) and 10G EPON from IEEE (802.3av) as well as progress towards longer reach and higher capacities. The emerging WDM-PON technology variants and their characteristics are outlined. Finally, the evolution of PON network management is discussed in detail.
FEC gain in DC-coupled burst mode receivers is limited because of a variance in BER between bursts. This BER variance is characterized in an XG-PON1 upstream prototype. It is shown that basic BER tests overestimate the FEC gain.
For next generation PONs, the main effort is currently on increasing the line rate with 10 GPON while WDM-PON is increasingly being discussed. These approaches are compared based on performance, cost and power consumption.
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