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We analytically investigate and derive equations for the empirical moments of asynchronously sampled signal amplitudes as functions of signal power, noise power, and accumulated chromatic dispersion (CD) of a transmission link. The solutions of these equations enable low-cost, simultaneous and independent monitoring of in-band optical signal-to-noise ratio (OSNR) and CD of the fiber link for various...
We propose a technique for simultaneous and independent optical signal-to-noise ratio (OSNR) and chromatic dispersion (CD) monitoring by using the empirical moments of asynchronously sampled signal amplitude. The proposed technique is low-cost and is applicable to various modulation formats and data rates with good accuracy and large monitoring ranges.
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.
A path computation-capable network management system (NMS) which enables to 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.
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.
A centralized path computation element integrated with optical performance monitoring was developed for transparent optical network. Appropriate path establishment satisfying requisite transmission performance was successfully confirmed in the testbed.
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