Multi-band Transmission over E-, S-, C- and L-band with a Hybrid Raman Amplifier

Capacity enhancement by utilising the unused spectral bands of the low-loss optical window of standard single-mode fibre (SSMF) is a cost-effective solution for meeting the future demand of data traffic. The development of optical amplifiers that can operate in different spectral bands is expected to play an integral part in the establishment of multi-band networks. In this work, we perform experimental, analytical and numerical modelling of a multi-band transmission system using a hybrid distributed-discrete Raman amplifier enabling signal amplification from 1410-1605 nm. The developed amplifier was tested over 50km of SSMF using 200 Gbit/s channels, where successful transmission was achieved, well above the HD-FEC threshold of 8.5 dB. Further study on the multi-band transmission performance was carried out using a semi-analytical closed-form approximation and split-step Fourier method-based simulations for various related test cases. The analytical and numerical models are also compared with experimental results, showing reasonable agreement in terms of system performance estimation

Multi-band Transmission over E-, S-, C- and L-band with a Hybrid Raman Amplifier

Capacity enhancement by utilising the unused spectral bands of the low-loss optical window of standard single-mode fibre (SSMF) is a cost-effective solution for meeting the future demand of data traffic. The development of optical amplifiers that can operate in different spectral bands is expected to play an integral part in the establishment of multi-band networks. In this work, we perform experimental, analytical and numerical modelling of a multi-band transmission system using a hybrid distributed-discrete Raman amplifier enabling signal amplification from 1410-1605 nm. The developed amplifier was tested over 50km of SSMF using 200 Gbit/s channels, where successful transmission was achieved, well above the HD-FEC threshold of 8.5 dB. Further study on the multi-band transmission performance was carried out using a semi-analytical closed-form approximation and split-step Fourier method-based simulations for various related test cases. The analytical and numerical models are also compared with experimental results, showing reasonable agreement in terms of system performance estimation

Optical O-to-U Band Transmission Optimisation Using Numerical Gaussian Noise Integral Model Result Dataset

All files are formatted as csv, separated with \t (tab) character. Files include:fibre.txt contains SSMF parameters between 1.2µm to 1.7µm, including dispersion, attenuation, nonlinear coefficient and affective area.errors.txt contains calculated mean error between SSFM and integral model NLI across 1 to 101 channels and -2 to +6dBm launch power per channel.hyperp.txt is integral model parameter optimisation where x is average m steps per km, y is number of Riemann sums, z1 is computation time in sec, z2 is dB mismatchssfm_results2.txt is same as errors.txt but shows NLI for each channel for 101ch scenario and includes closed-form solution.optimised_per_points.txt contains optimised launch power for O to U band transmission, including launch power (p0), power at the end of fibre (p1), NLI, ASE, and SNR (total) in dB. It also has specific dispersion (D) and attenuation (att) for given channel.</p