Results 31 to 40 of about 77,763 (260)

Few-mode fiber based optical sensors

Optics Express, 2015
Few-mode fibers (FMFs) have found applications in optical communications and sensors with attractive features that standard single mode fiber (SSMF) do not possess. We report our recent progress on FMF based optical sensors, and show the potential of utilizing the spatial dimension for multi-parameter sensing with discrimination capability.
An, Li, Yifei, Wang, Qian, Hu, William, Shieh   +3 more
openaire   +2 more sources

Concentric-Ring-Assisted Multimode Fiber Supports Numerous High-Order LP Beams

Photonics
This study proposes and numerically investigates the design and characterization of a ring-assisted (RA) fiber supporting 11 LP mode groups and a concentric-ring-assisted (CRA) fiber supporting 13 LP mode groups.
Chengyang Zhu, Xi Zhang, Haixuan Xu, Jingwen Zhang, Shuqi Ma, Yize Liang   +5 more
doaj   +1 more source

Toward Pbit/s Optical Transmission: A Review of Few-Mode Fiber Demultiplexing Technologies [PDF]

ITM Web of Conferences
Because the global data traffic has grown so rapidly, the transmission capacity of traditional single-mode fibers has already approached the Shannon limit, which is why few-mode fiber (FMF), which exploit the orthogonality of spatial modes for mode ...
Lin Jingran
doaj   +1 more source

Characterization of few mode fibers by OLCI technique [PDF]

2014 The European Conference on Optical Communication (ECOC), 2014
All LP modes of a few mode fiber are simultaneously characterized using phase-sensitive optical low-coherence interferometry. The differential modal group delay and absolute chromatic dispersion values of each mode are retrieved from a single measurement without spatial mode transformers.
R. Gabet, E. Le Cren, Cang Jin, Michel Gadonna, Bora Ung, Yves Jaouën, Monique Thual, Sophie LaRochelle   +7 more
openaire   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Contactless vital signs monitoring based on few-mode and multi-core fibers

Opto-Electronic Advances, 2020
Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation.
Tan Fengze, Lyu Weimin, Chen Shuyang, Liu Zhengyong, Yu Changyuan   +4 more
doaj   +1 more source

Mode-resolved nonlinear absorption characteristics of few-mode fiber-multimode fiber-few-mode fiber structures

Optics Express
We report a systematic investigation on the mode-resolved nonlinear absorption characteristics of the few-mode fiber-multimode fiber-few-mode fiber (FMF) structure. Firstly, the transmission formulas of the FMF structure are derived, demonstrating that the transmission is mode-dependent.
Jia-Wen Wu, Jia-Hao Chen, Bing-Ye Zhang, Hu Cui, Zhi-Chao Luo, Wen-Cheng Xu, Ai-Ping Luo   +6 more
openaire   +2 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Block-Based Mode Decomposition in Few-Mode Fibers

Photonics
A block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all ...
Chenyu Wang, Jianyong Zhang, Baorui Yan, Shuchao Mi, Guofang Fan, Muguang Wang, Peiying Zhang   +6 more
doaj   +1 more source