Design of a Four-Branch Optical Power Splitter Based on Gallium-Nitride Using Rectangular Waveguide Coupling for Telecommunication Links by Retno W. Purnamaningsih, Nji R. Poespawati, Elhadj Dogheche

“…The optimisation was conducted using the 3D FD-BPM method for long wavelength optical communication. The result shows that, at propagation length of 925 μm, the optical power input was successfully split into four uniform output beams, each with 24% of total input power. …”
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Design considerations for wavefront sensing with self-referencing interferometers in adaptive optics systems by MacGillivray Alexander C., Hristovski Ilija R., Jenne Matthias F., Reeves Andrew P., Mata Calvo Ramon, Holzman Jonathan F.

“…The SRI is developed to aid adaptive optics (AO) control, via deformable mirrors, in correcting wavefront error from atmospheric turbulence in (laser-based) free-space optical communication links. The SRI is used here given its potential to outperform more common wavefront sensors in functioning over weak through strong turbulence conditions. …”
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Optimization and Modeling of Optical Emission Spatial Coverage from Underwater Multi-Faceted Optical Base Stations by Junjie Shi, Chunbo Ma, Xu Tian, Hanjun Guo, Jun Ao

“…Compared with point-to-point wireless optical communication systems, multi-faceted Optical Base Stations (OBSs) offer the advantages of supporting multi-user access and achieving omnidirectional dynamic communication. …”
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Origins and conservation of topological polarization defects in resonant photonic-crystal diffraction by Yin Xuefan, Inoue Takuya, Peng Chao, Noda Susumu

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Higher-Order Amplitude Squeezing in Six-Wave Mixing Process by Sunil Rani, Jawahar Lal, Nafa Singh

“…This study when supplemented with experimental observations offers possibility of improving performance of many optical devices and optical communication networks.…”
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From source to sink: the path to efficient energy harvesting with LEDs and displays by Andrea De Iacovo, Gaetano Assanto, Lorenzo Colace

“…Abstract In the last three decades, light emitting diodes (LEDs) have represented a breakthrough innovation for optoelectronic applications. From optical communication to lighting and compact displays, LEDs are nowadays the device of choice in all those fields where high fluence, low power consumption and high pixel density are required. …”
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On Computation and Analysis of Topological Index-Based Invariants for Complex Coronoid Systems by Muhammad Aamer Rashid, Sarfraz Ahmad, Muhammad Kamran Siddiqui, Mohammed K. A. Kaabar

“…Shannon put forwarded the apprehension of entropy to enumerate upper bounds in transmission rates in telephonic channels, in optical communication, and in wireless. The prestigious feature of entropy is that it entitles the amount of uncertainty in a system. …”
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A Novel Design of MSM Photodetector and the Investigation of Two-Top Contacts Spacing Effects on Detection Speed and Transient Response by Savarimuthu Robinson, Yunjian Jia

“…The photodetector is one of the main components of the optical communication systems that converts optical signal to electrical signal. …”
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Broadband and fabrication tolerant polarization splitter–rotator on thin-film lithium niobate by Chijun Li, Geng Chen, Yuankang Huang, Siyu Lu, Zong Wang, Yiqi Dai, Cheng Zeng, Jinsong Xia

“…On-chip polarization splitter–rotators (PSRs) are crucial components for coherent optical communication and polarization-division multiplexing systems. …”
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Two-wavelength WDM multiplexers based on combined fiber structures by D. A. Ivanov, V. I. Nefedov

“…One of the main directions in the development of optical communication systems is associated with the use of optical fiber (ОF) for data reception and transmission. …”
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Dual subwavelength-grating topology for building polarization beam splitters by Chia-Chih Huang

“…A polarization beam splitter (PBS) is key for building polarization-diversity systems in optical communication networks. Here, we propose a compact and easy-to-fabricate PBS based on a dual subwavelength-grating (DSWG) structure positioned between two Si waveguides on a silicon-on-insulator platform. …”
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Optical semantic communication through multimode fiber: from symbol transmission to sentiment analysis by Zheng Gao, Ting Jiang, Mingming Zhang, Hao Wu, Ming Tang

“…This work highlights the potential of MMF-based semantic communication to enhance both capacity and robustness in optical communication systems, offering promising applications in bandwidth-constrained and noisy environments.…”
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A Study Using the Network Simulation Method and Nondimensionalization of the Fiber Fuse Effect by Juan Francisco Sanchez-Pérez, Joaquín Solano-Ramírez, Fulgencio Marín-García, Enrique Castro

“…The results highlight the effectiveness of the NSM in solving nonlinear and coupled problems in thermal engineering, providing a solid framework for future research in the optimisation of optical communication systems.…”
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Optical spectra of conjugated gold nano-colloids; Scattering cross section and effects of solvent and polydispersity by Ehsan Koushki, Hamid Akherat Doost

“…The results of this investigation are very important in the interpretation of the absorption spectra of Au NPs, especially the wavelength and width of the plasmonic peak, and through the study of these spectral characteristics, useful information can be obtained about the surface agents and the solvent, which can open a new aperture to sensor applications of Au NPs, such as optical sensors, biomedical imaging and optical communication technologies. These results can be of interest to experimental researchers working in the field of Au NPs and help to interpret spectral data.…”
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Coronavirus Pandemic Analysis Through Tripartite Graph Clustering in Online Social Networks by Xueting Liao, Danyang Zheng, Xiaojun Cao

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Beyond 200-Gb/s PAM4 ADC and DAC-Based Transceiver for Wireline and Linear Optics Applications by Ahmad Khairi, Amir Laufer, Ilia Radashkevich, Yoel Krupnik, Jihwan Kim, Tali Warshavsky Grafi, Ajay Balankutty, Yaniv Sabag, Yoav Segal, Udi Virobnik, Mike Peng Li, Itamar Levin, Yosef Ben Ezra, Ariel Cohen

“…The proof-of-concept demonstration of 224 Gb/s with linear optics opens the avenue for power-efficient, low-latency future optical communication. This is crucial for high-performance computing (HPC) networking as well as emerging applications in high-end FPGA.…”
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ESPGD Algorithm to Improve the Convergence Speed for Adaptive Single-Mode Fiber Coupling by Jinjin Peng, Bo Qi, Yun Zhang, ZhenChuang Li, Yao Mao

“…The adaptive single-mode fiber (SMF) coupling technique is normally adopted since the coupling efficiency (CE) significantly determines the performance of the free-space optical communication (FSOC) systems. The stochastic parallel gradient descent (SPGD) algorithm is the most commonly used control algorithm in adaptive SMF fiber coupling system. …”
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Impact of Spatial Hole Burning and Linewidth Enhancement Factor on Distributed-Feedback Quantum Cascade Lasers: A Comprehensive Design Analysis by Sara Zaminga, Lorenzo Columbo, Carlo Silvestri, Mariangela Gioannini, Frederic Grillot

“…The purpose is to supply designers with a guideline to achieve the optimal structure for efficient single-mode emission, which is a highly required specification in manifold applications, like free-space optical communication. Numerical simulations are in good agreement with experimental findings relative to a DFB QCL operating at 9.34 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula>m.…”
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Towards last-mile connectivity in 6G-IoT: An integrated MIMO-FSO communication system and FBG sensors under atmospheric attenuations, strain and temperature effects by R. Arunachalam, Rupali Singh, M. Vinoth Kumar

“…Free-space optical (FSO) communication is an advanced wireless optical communication technology that provides high-speed data services for 6th-generation wireless communication and Internet of Things (IoT) networks. …”
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High-Transmittance Subwavelength Metal Grating with Relief Structure Composed of Multiple Steps by Zhongfei Wang, Dawei Zhang, Qi Wang, Banglian Xu, Qingyong Tang, Yuanshen Huang, Songlin Zhuang

“…With the unique characteristics, the metal grating is expected to find applications in liquid crystal display fields, polarization imaging, optical communication, and so on.…”
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