Results 51 to 60 of about 400 (123)

Optical Performance Monitoring for Intra-LP-Mode Dispersion in Weakly-Coupled Mode-Division Multiplexed Systems

IEEE Photonics Journal, 2022
Weakly-coupled mode-division multiplexing (MDM) technique based on linearly-polarized (LP) modes in ultralow-modal-crosstalk few-mode fiber (FMF) has been considered as a promising candidate for capacity enhancement of next-generation optical ...
Mingqing Zuo, Jiaxin Liu, Gang Qiao, Lei Shen, Yuyang Gao, Dawei Ge, Yongqi He, Zhangyuan Chen, Juhao Li   +8 more
doaj   +1 more source

Ectomycorrhizal fungi and root water uptake respond independently to water availability

Oikos, Volume 2025, Issue 11, November 2025.
Temperate forests on their warm and dry distribution limits are expected to be most vulnerable to reductions in water availability. This prediction is mostly based on studies assessing single forest functions, mainly growth. Water and nutrient cycling are functions that rely on tree roots and their symbiotic association with ectomycorrhizal (ECM) fungi.
Asun Rodríguez‐Uña, David Moreno‐Mateos, Silvia Matesanz, Lisa Wingate, Adrià Barbeta, Javier Porras‐Gómez, Teresa E. Gimeno   +6 more
wiley   +1 more source

Ant-colony optimization-based multi-input multi-output (ACO-MIMO) equalization for low-complexity mode-division multiplexing (MDM) processing

Optics Express
In mode-division multiplexing (MDM) systems, the computational complexity of the multi-input multi-output (MIMO) equalization module is a critical obstacle to practical development. The step size μ and the number of taps K are key parameters in the equalization algorithm, influencing the performance of finite impulse response (FIR) equalizers ...
Tianfeng Zhao, Feng Wen, Bianxia Feng, Feng Tian, Mingming Tan, Baojian Wu, Bo Xu, Kun Qiu   +7 more
openaire   +2 more sources

Advanced Optical Integration Processes for Photonic‐Integrated Circuit Packaging

Advanced Materials Technologies, Volume 10, Issue 19, October 7, 2025.
Photonic integrated chip packaging is a growing technology that helps make devices faster, more efficient, and more compact by using light instead of electricity. This review highlights recent progress in making these chips work better at different levels, discusses current challenges like heat and alignment, and looks at future possibilities for ...
Keuntae Baek, Minhyeok Kim, Hak‐Sung Kim, Jinho Ahn, Hongyun So   +4 more
wiley   +1 more source

Advances in Mode (De)Multiplexing Technologies via Circularly Symmetric Structured Light Beams

Advanced Photonics Research, Volume 6, Issue 10, October 2025.
This review presents a comprehensive overview of mode (de)multiplexing technologies using circularly symmetric structured light beams, encompassing strategies of beam splitter combinations, multiorder diffractive gratings, optical coordinate transformations, angular dispersion lenses, multilayer cascaded modulations, and multidimensional hybrid (de ...
Qingji Zeng, Shu Chen, Zhibin Wu, Junmin Liu, Huapeng Ye, Gaiqing Zhao, Dianyuan Fan, Shuqing Chen   +7 more
wiley   +1 more source

Mode Division Multiplexing (MDM) Weight Bank Design for Use in Photonic Neural Networks

, 2018
Neural networks provide a powerful tool for applications from classification and regression to general purpose alternative computing. Photonics have the potential to provide enormous speed benefits over electronic and software networks, allowing such networks to be used in real-time applications at radio frequencies. Mode division multiplexing (MDM) is
openaire   +2 more sources

A Fast and Effective MIMO Algorithm Using CLR-RNN for Hybrid MDM and WDM Optical Communication System

IEEE Photonics Journal
There is an increasing demand for data with the development of the world, and various fiber optic multiplexing techniques have become an important research direction to improve transmission capacity.
Danni Zhang, Zhongwei Tan, Xinyuan Ma, Shun Lu, Wenhua Ren, Fengping Yan   +5 more
doaj   +1 more source

Add/Drop Mode-Division Multiplexer Based on a Mach–Zehnder Interferometer and Periodic Waveguides

IEEE Photonics Journal, 2015
Mode-division multiplexing (MDM) is currently under study due to its potential to further increase data rates in optical communication circuits. In this paper, we propose an add/drop MDM for the first- and second-order modes that cover the whole C-Band ...
D. Perez-Galacho, D. Marris-Morini, A. Ortega-Monux, J. G. Wanguemert-Perez, L. Vivien   +4 more
doaj   +1 more source

Two‐Way Relaying for Orbital Angular Momentum LOS Transmission

International Journal of Communication Systems, Volume 38, Issue 13, 10 September 2025.
This paper investigates two‐way relaying (TWR) for orbital angular momentum (OAM)‐based line‐of‐sight (LOS) transmission. Low‐complexity near‐ML detectors are proposed for OAM mode division multiplexing and index modulation. Theoretical analysis and simulations confirm that TWR significantly improves bit error performance and spectral efficiency over ...
Oluwabukunmi Williams Oso, Narushan Pillay, Hongjun Xu   +2 more
wiley   +1 more source

Performance Optimization of 120 Gbps–120 GHz Hybrid MDM-FSO Utilizing Non-Coherent Modified Duobinary Modulations for Optical Wireless Distributed Networks

Applied Sciences
This study proposes optimizing the performance of free space optic signal transmission using spatial division multiplexing. The research uses different modified duobinary modulation schemes to model and optimize three hybrid mode division multiplexing ...
Rabiu I. Sabitu, Amin Malek
doaj   +1 more source