Continuous 16.4-THz Bandwidth Coherent DWDM Transmission in O-Band Using a Single Fibre Amplifier System
Daniel J. Elson, Mindaugas Jarmolovičius, V. Mikhailov, Jiawei Luo, Daryl Inniss, Shohei Beppu, Glenn Baxter, Ralf Stolte, Luke Stewart, Shigehiro Takasaka, Eric Sillekens, Robert I. Killey, Polina Bayvel, Noboru Yoshikane, Takehiro Tsuritani, Yuta Wakayama
Abstract
A record continuous transmission bandwidth of 16.4 THz is demonstrated in O-band fibre transmission over an 80-km single-mode ultra low-loss fibre span. Bismuth-doped fibre amplifiers with an output power of 25 dBm and a low noise figure of 3.6 dB compensate a loss of 80-km fibre span. An O-band wavelength selective switch with a 16.4 THz bandwidth maximises the transmission capability and enabled optimisation of the input spectrum shape to reduce nonlinear interference near zero dispersion, resulting in a potential achievable information rate of over 100 Tb/s to be reached.