100-km-reach, 40聽Gb/s/位 downstream and 10聽Gb/s/位 upstream, channel-reuse WDM-PON employing tunable laser with back-reflection optical signal detection-based self wavelength management
文摘
We experimentally demonstrate a 100-km-reach, channel-reuse wavelength-division-multiplexing passive optical network (WDM-PON) with 40 Gb/s/位 downstream and 10 Gb/s/位 upstream transmission and a back-reflection optical signal detection-based automatic wavelength control method for a tunable laser used in a colorless optical network unit. Channel-reuse, full-duplex, 40 Gb/s/位 downstream and 10 Gb/s/位 upstream transmission on a 100 GHz WDM grid with 100 km reach was achieved. The transmission performance was measured using different optical signal to back-reflection optical signal ratios, optical signal to Rayleigh backscattering noise ratios, and different central wavelength shifts between the upstream and downstream signals in the channel-reuse system. Keywords WDM-PON Channel-reuse Tunable laser Automatic wavelength control Rayleigh backscattering noise