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The multimode waveguide bends (MWBs) with very compact sizes are the key building blocks in the applications of different mode-division multiplexing (MDM) systems. To further increase the transmission capacity, the silicon multimode…

Optics · Physics 2023-08-09 Juanli Wang , Shangsen Sun , Runsen Zhang , Fengchun Zhang , Ning Zhu

A novel MIMO-DSP for space-division multiplexing over multimode fibres is proposed. A principal modes approach is shown to provide two-fold benefits: over 13 times channel memory reduction while minimising the number of optical front-ends…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Fabio A. Barbosa , Stefan Rothe , Dennis Pohle , Jürgen W. Czarske , Filipe M. Ferreira

Spatially splitting nonclassical light beams is in principle prohibited due to noise contamination during beam splitting. We propose a platform based on thermal motion of atoms to realize spatial multiplexing of squeezed light. Light…

Quantum Physics · Physics 2019-11-19 Jian Sun , Weizhi Qu , Eugeniy Mikhailov , Irina Novikova , Heng Shen , Yanhong Xiao

There have been some significant advances in optical-fiber multimode communications. And important effort in on-chip communication has also been recently reported for realizing mode-division multiplexing (MDM). Because of the difficulty in…

Applied Physics · Physics 2017-12-06 Wanyuan Liu

The use of dual polarization in mobile satellite systems is very promising as a means for increasing the transmission capacity. In this paper we study a system which uses simultaneously two orthogonal polarizations in order to communicate…

Signal Processing · Electrical Eng. & Systems 2018-03-22 Anxo Tato , Pol Henarejos , Carlos Mosquera , Ana I. Pérez-Neira

Polarization de-multiplexing and multiplexing by means of conical refraction is proposed to increase the channel capacity for free space optical communication applications. The proposed technique is based on the forward-backward optical…

Optics · Physics 2015-02-25 Alex Turpin , Yurii Loiko , Todor K. Kalkandjiev , Jordi Mompart

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

In our work we investigate the propagation of optical modes in nanoscale hybrid plasmonic waveguides. Frequency domain Maxwell equations based simulations are implemented to study properties of mixed modes in 3D. The results of our analysis…

Multimode optical fibers have seen increasing applications in communication, imaging, high-power lasers and amplifiers. However, inherent imperfections and environmental perturbations cause random polarization and mode mixing, making the…

The escalating demands of compute-intensive applications urgently necessitate the adoption of optical interconnect technologies to overcome bottlenecks in scaling computing systems. This requires fully exploiting the inherent parallelism of…

The modal dispersion of waveguides often limits integrated photonic devices to operation with a single polarization state. This presents a challenge for sensing and spectroscopy applications, which often require polarization diversity over…

We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through the application of a successive interference cancellation digital…

Signal Processing · Electrical Eng. & Systems 2023-01-04 Yiming Li , Zhaozhong Chen , Zhouyi Hu , David M. Benton , Abdallah A. I. Ali , Mohammed Patel , Martin P. J. Lavery , Andrew D. Ellis

Surface plasmon polariton (SPP) as a bounded mode on a metal/dielectric interface intrinsically has a definite transverse magnetic (TM) polarization that usually lacks further manipulations. However, the in-plane longitudinal components of…

Optics · Physics 2014-05-07 L. Li , T. Li , X. M. Tang , S. M. Wang , Q. J. Wang , S. N. Zhu

We propose an enhanced spatial modulation (SM)-based scheme for indoor visible light communication systems. This scheme enhances the achievable throughput of conventional SM schemes by transmitting higher order complex modulation symbol,…

Signal Processing · Electrical Eng. & Systems 2022-01-21 Shimaa Naser , Lina Bariah , Sami Muhaidat , Mahmoud Al-Qutayri , Paschalis C. Sofotasios

A long-standing vision of backscatter communications is to provide long-range connectivity and high-speed transmissions for batteryless Internet-of-Things (IoT). Recent years have seen major innovations in designing backscatters toward this…

Networking and Internet Architecture · Computer Science 2019-12-19 Guochao Song , Hang Yang , Wei Wang , Tao Jiang

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…

Due to that the polarization states in optical fibers change randomly during transmission, polarization-independent (PID) devices are demanded to receive lights with arbitrary polarization states. Compared with their orthogonal polarization…

Optics · Physics 2023-12-12 Yating Wu , Xiaoyan Liu , Tao Chu

Programmable optical devices provide performance enhancement and flexibility to spatial multiplexing systems enabling transmission of tributaries in high-order eigenmodes of spatially-diverse transmission media, like multimode fiber (MMF).…

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