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Related papers: Space-division multiplexing for fiber-wireless com…

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Mode division multiplexing (MDM) in optical fibers enables multichannel capabilities for various applications, including data transmission, quantum networks, imaging, and sensing. However, MDM optical fiber systems, usually necessities…

Optics · Physics 2023-11-10 Kaihang Lu , Zengqi Chen , Hao Chen , Wu Zhou , Zunyue Zhang , Hon Ki Tsang , Yeyu Tong

Few-mode multi-core fiber (FM-MCF) based Space-Division Multiplexing (SDM) systems possess the potential to maximize the number of multiplexed spatial channels per fiber by harnessing both the space (fiber cores) and mode (optical mode per…

Networking and Internet Architecture · Computer Science 2025-06-06 Junyi Liu , Zengquan Xu , Shuqi Mo , Yuming Huang , Yining Huang , Zhenhua Li , Yuying Guo , Lei Shen , Shuo Xu , Ran Gao , Cheng Du , Qian Feng , Jie Luo , Jie Liu , Siyuan Yu

We present how to implement fiber-distributed signal processing in the context of fiber-wireless communications by using different multicore fibers, providing both radio access distribution and microwave photonics signal processing in the…

Signal Processing · Electrical Eng. & Systems 2018-10-30 Ivana Gasulla , Sergi Garcia , David Barrera , Javier Hervas , Salvador Sales

The explosive growth of global data traffic demands scalable and energy-efficient optical communication systems. Spatial division multiplexing (SDM) using multicore or multimode fibers is a promising solution to overcome the capacity limit…

The optical fibre is an essential tool for our communication infrastructure since it is the main transmission channel for optical communications. The latest major advance in optical fibre technology is spatial division multiplexing (SDM),…

Quantum Physics · Physics 2020-01-23 Guilherme B. Xavier , Gustavo Lima

Despite Space division multiplexing fibers were initially envisioned as pure transmission media, they exhibit as well great potential for signal processing. We review here different solutions we developed for microwave signal processing…

Applied Physics · Physics 2020-01-10 Sergi García , Rubén Guillem , Mario Ureña , Ivana Gasulla

The development and wide application of quantum technologies highly depend on the capacity of the communication channels distributing entanglement. Space-division multiplexing (SDM) enhanced channel capacities in classical telecommunication…

Optical interconnect is a potential solution to attain the large bandwidth on-chip communications needed in high performance computers in a low power and low cost manner. Mode-division multiplexing (MDM) is an emerging technology that…

Emerging Technologies · Computer Science 2017-08-02 Xinru Wu , Chaoran Huang , Ke Xu , Chester Shu , Hon Ki Tsang

Significant effort in optical-fiber research has been put in recent years into realizing mode-division multiplexing (MDM) in conjunction with wavelength-division multiplexing (WDM) to enable further scaling of the communication bandwidth…

Two signal multiplexing schemes for optical fiber communication are considered: Wavelength-division multiplexing (WDM) and nonlinear frequency-division multiplexing (NFDM), based on the nonlinear Fourier transform (NFT). Achievable…

Information Theory · Computer Science 2018-04-24 Mansoor I. Yousefi , Xianhe Yangzhang

The low-pass characteristics of front-end elements including light-emitting diodes (LEDs) and photodiodes (PDs) limit the transmission data rate of visible light communication (VLC) and Light Fidelity (LiFi) systems. Using multiplexing…

Signal Processing · Electrical Eng. & Systems 2022-09-21 Cheng Chen , Shenjie Huang , Iman Tavakkolnia , Majid Safari , Harald Haas

Space-division multiplexing (SDM) is one of the key enabling technologies to increase the capacity of fiber communication systems. However, implementing SDM-based systems using multimode fiber has been challenging with the need for compact,…

Optics · Physics 2023-11-08 Wu Zhou , Zunyue Zhang , Hao Chen , Hon Ki Tsang , Yeyu Tong

Optical communications technology has made enormous and steady progress for several decades, providing the key resource in our increasingly information-driven society and economy. Much of this progress has been in finding innovative ways to…

Optics · Physics 2015-06-15 D. J. Richardson , J. M. Fini , L E. Nelson

We propose a novel space division multiplexing (SDM) technique based on spatial phase encoding, which may provide a new perspective beyond the conventional SDM in free space optical communications, such as multiplexing of orbital angular…

Optics · Physics 2013-08-30 Zhou Hai-long , Dong Jian-ji , Shi Lei , Huang De-xiu , Zhang Xin-Liang

The development of deep neural networks is witnessing fast growth in network size, which requires novel hardware computing platforms with large bandwidth and low energy consumption. Optical computing has been a potential candidate for…

We demonstrate the effectiveness of a novel phase-noise-tolerant, variational-autoencoder-based equalization scheme for space-division-multiplexed (SDM) transmission in an experiment over 150km of randomly-coupled multi-core fibers.

Signal Processing · Electrical Eng. & Systems 2025-09-19 Vincent Lauinger , Lennart Schmitz , Patrick Matalla , Andrej Rode , Sebastian Randel , Laurent Schmalen

This paper proposes a multi-user Spatial Division Multiplexing (SDM) near-field access scheme, inspired by the orthogonal characteristics of multi-mode vortex waves. A Reconfigurable Meta-surface (RM) is ingeniously employed as the gateway…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Yufei Zhao , Qihao Lv , Yuanbin Chen , Afkar Mohamed Ismail , Yong Liang Guan , Chau Yuen

Mode Division Multiplexing (MDM) is a technique used over the past decade in Silicon Photonics (SiPh) to incorporate more data into communication links by employing higher-order transverse electric or transverse magnetic modes. MDM was…

We report on the realization of a novel fiber-optic radio frequency (RF) transfer scheme with the bidirectional frequency division multiplexing (FDM) dissemination technique. Here, the proper bidirectional frequency map used in the forward…

Instrumentation and Detectors · Physics 2021-07-07 Qi Li , Liang Hu , jinbo Zhang , Jianping Chen , Guiling Wu

We review our last work on dispersion-engineered heterogeneous multicore fiber links designed to act as tunable true time delay lines for radiofrequency signals. This approach allows the realization of fiber distributed signal processing in…

Signal Processing · Electrical Eng. & Systems 2018-10-30 Sergi Garcia , Ivana Gasulla
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