Results 51 to 60 of about 1,510 (179)
ABSTRACT Photonic matrix processors are attracting attention in applications such as AI inference due to their low‐power and low‐latency properties. However, their applicability has been largely limited to low‐precision computation due to inherent stochastic analog noise and device non‐idealities.
Shoichi Hirasawa, Michihiro Koibuchi
wiley +1 more source
Broadband Parametric Amplification in AlGaAs‐on‐Insulator Nanowaveguides
Harnessing the exceptional nonlinearity of AlGaAs‐on‐insulator nanowaveguides, four‐wave‐mixing parametric amplification achieves a record net on‐chip gain of 56 dB and a gain bandwidth exceeding 415 nm at telecom wavelengths. These results establish AlGaAsOI as a powerful platform for compact, high‐performance integrated nonlinear optical ...
Yanjing Zhao +6 more
wiley +1 more source
ABSTRACT The growing demands of artificial intelligence require new energy‐efficient and nonvolatile computing paradigms. To meet this challenge, we demonstrate a foundational device platform for optical fiber computing that targets the signal decay and power consumption bottlenecks of conventional systems.
Yule Zhang +18 more
wiley +1 more source
Integrated optical phased arrays are emerging as scalable engines for solid‐state beam steering and programmable wavefront control. This Review maps the field from beam‐steering principles and core building blocks to material platforms, system‐level bottlenecks, and application frontiers, highlighting how heterogeneous integration, aperiodic ...
Jingwei Li +7 more
wiley +1 more source
Embedding Fiber Segment Interferometry for Localization of Defects in Composite Structures
Graphical representation of composite structures with embedded fiber optic sensors for structural health monitoring, enabling strain measurement and damage localization under mechanical loading. ABSTRACT In the area of structural health monitoring (SHM), embedding strain sensors into smart composites is a key strategy for detecting failures arising ...
Shiva Mohammadkarimi +3 more
wiley +1 more source
Ultra‐Compact Low‐Loss 3D Glass Waveguide Chip Using Femtosecond Laser Writing Technique
An ultra‐compact, low‐loss fan‐in/fan‐out device for 4‐core fiber is demonstrated using femtosecond laser direct writing. Multi‐scan and overwriting methods are employed to produce low‐loss waveguides. A trench‐assisted offset‐assisted cosine‐shaped model is proposed to reduce bending loss.
Fengrui Yu +5 more
wiley +1 more source
A 5G C-RAN Optical Fronthaul Architecture for Hotspot Areas Using OFDM-Based Analog IFoF Waveforms
Analog fronthauling is currently promoted as a bandwidth and energy-efficient solution that can meet the requirements of the Fifth Generation (5G) vision for low latency, high data rates and energy efficiency.
Charoula Mitsolidou +9 more
doaj +1 more source
Research on Four Core Fiber WDM Device Technology
Space division multiplexing technology is one of the effective ways to improve the transmission capacity of optical communication system. The main technologies include Multi Core Fiber (MCF), few mode multiplexing and orbital angular momentum ...
CHEN Li +3 more
doaj
A distributed multi-target localization system based on optical Wavelength Division Multiplexing (WDM) network is demonstrated. The wideband orthogonal waveforms are generated by introducing the chaotic OptoElectronic Oscillator (OEO).
ZHU Dan +4 more
doaj +1 more source
Flexible Baseband-Unit Aggregation Enabled by Reconfigurable Multi-IF Over WDM Fronthaul
In cloud-radio access network, baseband-unit (BBU) aggregation schemes have been intensively discussed to improve the efficiency of resources in light traffic times.
Haiyun Xin +4 more
doaj +1 more source

