Abstract

We investigate recirculating transmission of a wideband S-, C- and L-band signal in a 4-core fiber. We transmit 552 x 25 GHz spaced, 24.5 GBd channels, covering more than 120 nm bandwidth from 1487.8 nm to 1608.33 nm through each core of the multi-core fiber (MCF), which has the same 125μm cladding dimeter as standard single-mode fiber. We first use PDM-16QAM modulation and measure performance at distances up to 3001 km, corresponding to 43 spans of the 69.8 km MCF. At this distance we measure a decoded throughput of 319 Tb/s or 342 Tb/s when estimating from the generalised mutual information (GMI). Extending the transmission distance to 8027 km, a selection of PDM-QPSK modulated channels across the spectrum were received with an average GMI estimated data-rate of 83.7 Gb/s. These results show that wideband transmission including the S-band has the potential to increase data-rates in long-haul optical fiber transmission. Further, our experiment confirms that 125 μm diameter MCFs can multiply transmission capacity whilst offering benefits of resource sharing and integration, expected in SDM systems.

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)

Demonstration of a 90 Tb/s, 234.8 km, C+L band unrepeatered SSMF link with bidirectional Raman amplification

Ruben S. Luis, Benjamin J. Puttnam, Georg Rademacher, Yoshinari Awaji, and Hideaki Furukawa
Opt. Express 30(8) 13114-13120 (2022)

High-capacity self-homodyne PDM-WDM-SDM transmission in a 19-core fiber

Benjamin J. Puttnam, Ruben Luis, José-Manuel Delgado-Mendinueta, Jun Sakaguchi, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, and Tetsuya Kawanishi
Opt. Express 22(18) 21185-21191 (2014)

WDM/SDM transmission of 10 x 128-Gb/s PDM-QPSK over 2688-km 7-core fiber with a per-fiber net aggregate spectral-efficiency distance product of 40,320 km⋅b/s/Hz

S. Chandrasekhar, A. H. Gnauck, Xiang Liu, P. J. Winzer, Y. Pan, E. C. Burrows, T.F. Taunay, B. Zhu, M. Fishteyn, M. F. Yan, J. M. Fini, E.M. Monberg, and F.V. Dimarcello
Opt. Express 20(2) 706-711 (2012)