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This paper describes a real-time transmission & switching system design for high vision (high definition video) signal. The system uses ten CWDM wavelengths simultaneously to transmit two pairs of HDMI video signals over a distance of 10 km. It canalso switch to stations at up to 16 different sites. A 4 CWDM wavelength test bed operation has confirmed that the system works. The system has the...
This paper introduces plural test bed configurations of a CWDM (coarse wavelength division multiplexing) local network. The latest test bed structure allows local people to broadcast high definition video any time they want to.The local access network such as FTTH (fiber to the home) has a point to multi-point network structure. As a trial The test bed network has a Multi-point to multi-point structure...
This paper discusses the key design issues in applying both CWDM (coarse wavelength division multiplexing) and optical hub technology to an access network. The purpose is to reconsider characteristics of both optical circuits (such as a splitter, a coupler, a laser diode, a photo diode) and CWDM technology, and to try to find improved optical components deployment in access areas. The core of the...
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