Abstract

In this work, we present an experimental demonstration of real-time transoceanic space-division multiplexed transmission with coupled-core multicore fibers. To compensate for modal coupling in the coupled-core multicore fibers, we implement real-time multiple-input multiple-output (MIMO) digital signal processing based on field programmable gate array circuits. Using optical receivers with a real-time MIMO, we demonstrate 16-channel wavelength-division multiplexed coupled four-core fiber transmission over 7200 km. The results show the feasibility of real-time coupled-core multicore fiber transmission.

Frequency-domain adaptive MIMO filter with fractional oversampling using stochastic gradient descent for long-haul transmission over coupled 4-core fibers

Manabu Arikawa and Kazunori Hayashi
Opt. Express 31(8) 13104-13124 (2023)

Weakly coupled 10-mode-division multiplexed transmission over 48-km few-mode fibers with real-time coherent MIMO receivers

Shohei Beppu, Koji Igarashi, Masahiro Kikuta, Daiki Soma, Tomoyuki Nagai, Yasuo Saito, Hidenori Takahashi, Takehiro Tsuritani, Itsuro Morita, and Masatoshi Suzuki
Opt. Express 28(13) 19655-19668 (2020)

Long-haul intermodal-MIMO-free MDM transmission based on a weakly coupled multiple-ring-core few-mode fiber

Mingqing Zuo, Dawei Ge, JiaXin Liu, Yuyang Gao, Lei Shen, Xiaobo Lan, Zhangyuan Chen, Yongqi He, and Juhao Li
Opt. Express 30(4) 5868-5878 (2022)

1120-channel OAM-MDM-WDM transmission over a 100-km single-span ring-core fiber using low-complexity 4×4 MIMO equalization

Junyi Liu, Zhenrui Lin, He Zhu, Lei Shen, Shuqi Mo, Zhenhua Li, Jingxing Zhang, Junwei Zhang, Xiaobo Lan, Jie Liu, and Siyuan Yu
Opt. Express 30(11) 18199-18207 (2022)

SDM transmission of real-time 10GbE traffic using commercial SFP + transceivers over 0.5km elliptical-core few-mode fiber

Ezra Ip, Giovanni Milione, Ming-Jun Li, Neda Cvijetic, Konstantinos Kanonakis, Jeffery Stone, Gaozhu Peng, Xesús Prieto, Carlos Montero, Vicente Moreno, and Jesús Liñares
Opt. Express 23(13) 17120-17126 (2015)