Abstract

One promising and competitive solution to keep up with the rapid growth in data traffic while at the same time addressing increasing network cost, is the efficient reuse of legacy optical fiber infrastructure. This is highly desirable as deployed single mode fibers represent a valuable asset in the network while new installations would require high additional investments. Multiband (MB) or ultra-wideband (UWB) systems, combined with high symbol rates and higher-order modulation formats, are promising solutions to capitalize the already existing fiber plants. In this contribution, we experimentally demonstrate S-C-L-band reception with 64 GBd dual-polarization (DP) 64-ary and 32-ary quadrature-amplitude modulation (QAM) while using C-band components off-the-shelf (COTS) such as DP-IQ modulators and coherent receivers. To achieve such broadband operation with components that are not optimized for an out-of-band use, mitigation of the associated penalties is decisive. To this end, we apply an end-to-end electro-optical Volterra-based coherent system identification followed by nonlinear digital predistortion of the transmitter. We achieve 150-nm operation bandwidth of the transmission system by performing only a single identification and predistortion at a reference wavelength of 1500 nm.

E-, S-, C- and L-band coherent transmission with a multistage discrete Raman amplifier

Pratim Hazarika, Mingming Tan, Aleksandr Donodin, Shabnam Noor, Ian Phillips, Paul Harper, Jeffery S. Stone, Ming Jun Li, and Wladek Forysiak
Opt. Express 30(24) 43118-43126 (2022)

S-, C- and L-band transmission over a 157 nm bandwidth using doped fiber and distributed Raman amplification

Benjamin J. Puttnam, Ruben S. Luís, Georg Rademacher, Manuel Mendez-Astudillio, Yoshinari Awaji, and Hideaki Furukawa
Opt. Express 30(6) 10011-10018 (2022)

214.7 Tbit/s S, C, and L-band transmission over 50 km SSMF based on silicon photonic integrated transceivers

Xu Zhang, Ming Luo, Jia Liu, Daigao Chen, Qingyu He, Honglin Ji, Yan Wu, Ping Du, Liang Mei, Yaqin Wang, Hongguang Zhang, Lei Wang, Zhixue He, Xi Xiao, and Shaohua Yu
Opt. Express 31(25) 41546-41555 (2023)

Ultra-wideband discrete Raman amplifier optimization for single-span S-C-L-band coherent transmission systems

Pratim Hazarika, Mingming Tan, Aleksandr Donodin, Mohammad Patel, Ian Phillips, Paul Harper, and Wladek Forysiak
Opt. Lett. 47(24) 6472-6475 (2022)

Disaggregated edge-enabled C+L-band filterless metro networks

F. Paolucci, R. Emmerich, A. Eira, N. Costa, J. Pedro, P. Wilke Berenguer, C. Schubert, J. K. Fischer, F. Fresi, A. Sgambelluri, and F. Cugini
J. Opt. Commun. Netw. 12(3) 2-12 (2020)