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We propose a multi-layer network with in-service traffic re-grooming. The combination of colorless multi-degree ROADM and ODU cross-connect with ODU reallocation functionality can offer significant cost reduction with no impact of re-grooming on services.
We demonstrate a simple self-polarization-stabilization technique for the long-reach RSOA-based WDM PON implemented with self-homodyne receivers. The effectiveness of this technique is confirmed in 2.5-Gb/s transmission experiments over 68-km long link partially composed of installed fibers.
Optical path computation element and its interwork with the network management system are investigated for planning and operation of all-optical networks. We successfully verified fast optical-path computation considering physical impairments and wavelength continuity.
In this paper, a GMPLS-controlled all-optical mesh network is demonstrated using a path computation-capable network management system (NMS). The developed NMS can manage topology and physical impairments, and create GMPLS-based lightpaths according to path computation results. Control and management capabilities have been evaluated using all-optical network testbed.
Grid over OBS/GMPLS is successfully demonstrated and a self-organized resource discovery and management scheme is proposed for consumer Grid. High-speed TCPs for Grid are experimentally compared.
Converged optical network technologies, including WDM-PON as a future common infrastructure, to accommodate both fixed and mobile broadband services are presented. A 100 Gbit/s optical OFDM technology for 100 GbE is also addressed.
An SOA-based network resource management architecture for orchestrated end-to-end network service is described. The design and operation of a network resource manager for optical networks are introduced, including virtualization, scheduling, path discovery and resource allocation.
This paper details the leading edge photonic GMPLS inter-carrier interface interoperability testing of Layer-2 switching and path computation element. These activities are promoted by the interoperability working group of the Kei-hanna Info-Communication Open Laboratories.
This presentation summarizes all-optical networking testbed demonstration to verify the network architecture including control and management capabilities. Optical performance monitoring technology is also introduced from the operational point of view.
QoS guaranteed optical network technologies, such as GE-PON, digital ROF, RPR and MPLS/GMPLS, for fixed and mobile broadband services are presented. Network management for multi-layer networks and resource management for advanced high-quality network services are also presented.
This paper presents demonstrated results of intelligent optical networks using photonics cross connect equipment. The field trial and the all-optical networking test bed confirmed that MEMS-based optical switches were validated in the carriers' actual environment
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