OTDM add - drop networking using 275 km installed fibres
نویسندگان
چکیده
Introduction: 160 Gbit=s optical time domain multiplexing (OTDM) technology is only interesting if full add-drop functionality can be realised on the existing fibre infrastructure [1]. A 160 Gbit=s OTDM add-drop node based on the gain transparent ultrafast nonlinear interferometer (GT-UNI) has been demonstrated under laboratory conditions [2]. In this Letter we present a 160 Gbit=s OTDM network built using legacy fibres. The network comprises a 160 Gbit=s transmitter, a 160 Gbit=s add-drop node placed between two field installed fibre links connecting the British Telecom telephone exchanges of Ipswich and Newmarket, and a 160 Gbit=s receiver node. We achieved a high performance operation of all OTDM network functionalities: transmission, clock recovery (CR), and switching on field experimental condition.
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