Long-reach bidirectional 320 Gb/s (32 × 10 Gb/s) channel-reuse dense wavelength division multiplexing passive optical network employing self-wavelength managed tunable laser

摘要

We demonstrate a channel-reuse bidirectional 10-Gb/s/λ long-reach DWDM-PON and an optical beat noise-based automatic wavelength control method for a tunable laser used in a colorless optical network unit. 100-GHz channel spacing 55- and 100-km full-duplex bidirectional 320 Gb/s (32×10 Gb/s) capacity transmissions are achieved without and with optical amplification. Transmission performance is also measured with different optical signal to Rayleigh backscattering noise ratios and different central wavelength shifts between upstream and downstream in the channel-reuse system.