Results 41 to 50 of about 991 (170)
Crosstalk Analysis of Heterogeneous Multicore Fibers Using Coupled-Mode Theory
Intercore crosstalk of heterogeneous multicore fiber is investigated based on coupled-mode theory. Random twisting model is used for estimating the crosstalk. The crosstalk of two kinds of fibers: triangular lattice 30-core fiber with four kinds of cores
Takeshi Fujisawa +6 more
doaj +1 more source
High nonlinearity and transparency in the 1–5 μm spectral range make tellurite glass fibers highly interesting for the development of nonlinear optical devices.
Elena A. Anashkina, Alexey V. Andrianov
doaj +1 more source
From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu +2 more
wiley +1 more source
End-View Image Processing Based Angle Alignment Techniques for Specialty Optical Fibers
We propose two end-view-based digital image processing algorithms for high-precision rotational angle alignment of specialty optical fibers. The first technique is based on the cross-correlation calculation between images of two fiber ends.
Li Shen +7 more
doaj +1 more source
Analysis of Crosstalk in Multicore Fibers: Statistical Distributions and Analytical Expressions
We present a study of multicore fiber (MCF) crosstalk using the coupled mode theory. We derived a general closed-form simulation formula for the crosstalk of MCF under random perturbations, which includes both the average crosstalk and the crosstalk ...
Kam Ng +4 more
doaj +1 more source
A Scalable Platform for Massively Parallel Superconducting Single‐Photon Detection
One hundred independent superconducting nanowire detectors, each with efficiency up to 80.1–98.3%, are integrated into a single compact system operating below 2.1 K. This parallel architecture supports fully connected multi‐user quantum entanglement distribution, while its scalability opens new avenues in optical quantum computing, QKD networks ...
You Xiao +14 more
wiley +1 more source
Breaking the speed limitation of wavemeter through spectra-space-time mapping
Speckle patterns generated by the intermodal interference of multimode fibers enable accurate broadband wavelength measurements. However, the measurement speed is limited by the frame rate of the camera that captures the patterns.
Zheng Gao +5 more
doaj +1 more source
Intelligent Continuum Micromachines in Complex Confined Spaces
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai +7 more
wiley +1 more source
Distributed optical fiber sensing (DOFS) is reviewed as a transformative technology for intelligent monitoring of transportation infrastructures. Advances in sensing fibers, cable design, and data analytics are summarized alongside representative field applications.
Xin Gui +11 more
wiley +1 more source
Femtosecond‐laser inscription enables precise positioning of fiber Bragg gratings within the cladding, introducing new spatial and modal design freedoms. Auxiliary‐waveguide, near‐core evanescent‐field, and direct cladding‐mode‐excitation architectures provide complementary pathways toward multiparameter, vector, distributed, and environmentally ...
Koustav Dey +3 more
wiley +1 more source

