10 September 2007 Large optical 3D MEMS switches in access networks
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Abstract
Interest is high among residential customers and businesses for advanced, broadband services such as fast Internet access, electronic commerce, video-on-demand, digital broadcasting, teleconferencing and telemedicine. In order to satisfy such growing demand of end-customers, access technologies such as fiber-to-the-home/building (FTTH/B) are increasingly being deployed. Carriers can reduce maintenance costs, minimize technology obsolescence and introduce new services easily by reducing active elements in the fiber access network. However, having a passive optical network (PON) also introduces operational and maintenance challenges. Increased diagnostic monitoring capability of the network becomes a necessity as more and more fibers are provisioned to deliver services to the end-customers. This paper demonstrates the clear advantages that large 3D optical MEMS switches offer in solving these access network problems. The advantages in preventative maintenance, remote monitoring, test and diagnostic capability are highlighted. The low optical insertion loss for all switch optical connections of the switch enables the monitoring, grooming and serving of a large number of PON lines and customers. Furthermore, the 3D MEMS switch is transparent to optical wavelengths and data formats, thus making it easy to incorporate future upgrades, such higher bit rates or DWDM overlay to a PON.
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Nicholas Madamopoulos, Nicholas Madamopoulos, Volkan Kaman, Volkan Kaman, Shifu Yuan, Shifu Yuan, Olivier Jerphagnon, Olivier Jerphagnon, Roger Helkey, Roger Helkey, John E. Bowers, John E. Bowers, } "Large optical 3D MEMS switches in access networks", Proc. SPIE 6776, Broadband Access Communication Technologies II, 67760I (10 September 2007); doi: 10.1117/12.732491; https://doi.org/10.1117/12.732491
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