Performance Analysis and Power Tilt Mitigation of Ultra-Wideband WDM Transmission Systems
Tianze Wu,
Feng Tian,
Yuyan Wu,
Xiru Yue,
Yu Gu,
Yi Cui,
Qi Zhang,
Rahat Ullah
Affiliations
Tianze Wu
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Feng Tian
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Yuyan Wu
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Xiru Yue
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Yu Gu
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Yi Cui
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Qi Zhang
State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Rahat Ullah
School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, China
Ultra-wideband (UWB) wavelength division multiplexing (WDM) transmission, which utilizes low-loss spectral windows of single-mode fiber for data transmission, is a highly promising method for increasing the capacity of optical communication. In this paper, we investigate the performance of a UWB WDM transmission system that covers the widely used C+L band as well as the additional O-, E-, and S-bands. We establish the transmission system for UWB and discuss the effects of the channel, including Kerr nonlinearity and inter-channel interference from inter-channel stimulated Raman scattering (ISRS) between O-, E-, S-, C-, and L-bands. Moreover, we demonstrate an optimization scheme for compensating the spectral power tilt caused by SRS in the S+C+L band system, which utilizes the Raman amplifier and the partition particle swarm optimization (PPSO) algorithm. The results show that the power tilt value of the algorithm is reduced from 18 to 2.93 dB, and the iteration speed is improved by 10% compared with the normal particle swarm algorithm. The scheme provides an efficient way to improve the generalized mutual information (GMI) performance of UWB WDM systems.
