The centralized Point-to-Point fibre access approach with a dedicated single mode optical fibre link connecting each
customer to a Central Office (CO) has advantages regarding future-proofness, security, and simple and low-cost optical
links and transceivers. The potential bottleneck in handling the large number of optical fibres that need to be terminated
in the CO, and combined with optoelectronic components, has been studied within the IST 6th Framework Programme
integrated project MUSE. The key parts in the CO are the passive cabinet where customer fibres are accessible through
fibre connectors in the Optical Distribution Frame (ODF), and the active cabinet with switching equipment and optical
transceivers. For the passive cabinet we conclude, that the most efficient solution is that each connection from the active
cabinet to a customer passes only one ODF, and that small form factor connectors are used. For the active cabinet we
have demonstrated the feasibility of an SFF-size module containing two bi-directional transceiver units by building and
successfully testing a prototype, increasing the customer port density by a factor of two compared to commercial
transceivers. The power consumption, which impacts power supply, cooling and cost, has been analyzed, and we
propose measures to significantly decrease the power consumption.
Gunnar Arvidsson, Lennart Backlin, Magnus Olson, Andrew Scholes, Joacim Haglund, Magnus Svensson, Goran Palmskog, Torsten Augustsson, Paul Eriksen, Mats Granberg, Jacob Larsson, Pontus Lundstrom
Access networks represent a bottle neck in the present communication networks. The introduction of optical single mode technology into the access networks (Fiber TO THE HOME, FTTH; Fiber To The Antenna, FTTA etc.), would be highly desirable. In order for this to occur a drastic reduction of the cost for key optoelectronic components such as transceivers is needed. We report on and discuss different key technologies crucial for the production of low cost optical single mode components. In particular a technology demonstrator in the form of an array transceiver module has been designed and fabricated, thereby demonstrating the process compatibility between a number of low-cost technologies.
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