Sunday, March 15, 2009

NEC Australia Tests Amplified GPON for Extended Range

To boost the reach of residential broadband, Dr. Ka Lun Lee and colleagues at the University of Melbourne and NEC Australia in the state of Victoria have developed a GPON system that combines a high-powered laser with Raman amplifier. Installed in the central office of a network provider, this high-powered laser feeds the optical signal as it heads out over a fiber. This increases the power and reach of the signal by a factor of almost ten. Lee's team built a mock network with a signal transmitter, a simulated splitter, and a receiver at the other end. Their proof-of-concept experiment successfully transmitted data over 37 miles of single mode fiber, error-free, at a speed of 2.5 Gbps. A paper on this topic will be presented at the upcoming Optical Fiber Communication Conference and Exposition (OFC)
next week in San Diego.
http://www.nec.com

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