Results 111 to 120 of about 2,768,398 (266)

A fiber optic intrusion monitoring system

Moldavian Journal of the Physical Sciences, 2013
A fiber optic intrusion monitoring system comprises a multimode optical fiber, a coherent light source, a CCD, and a processor for generation of the output signal. The system is based on the principle of variation of speckle pattern in the far-field of a
Culeac, Ion, Iovu, Mihail, Buzdugan, Artur, Ciornea, Viorel, Nistor, Iurie, Cojocaru, Ion   +5 more
doaj  

Semi-analytical model for coreless fiber-optic refractive index sensors and experimental validation

JPhys Photonics
This paper presents a combined numerical and experimental investigation of the transmission interference spectra of hetero-core optical fiber structures, supported by a Python-based repository for data analysis and simulation.
Karla I Serrano-Arévalo, Erasto Ortiz-Ricardo, Erika Rodríguez-Sevilla, Rigoberto Castro-Beltrán, Héctor Pérez-Aguilar, David Monzón-Hernández   +5 more
doaj   +1 more source

Bioinspired Flexible and Stretchable Coil Structure from Ti3C2Tx MXene/AgNPs‐Functionalized Piezoelectric Nanofibers for Enhanced Energy Harvesting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Ti3C2Tx MXene and Ag nanoparticles are embedded into piezoelectric nanofibers to form a stretchable, self‐powered coil that converts mechanical deformation into electrical energy. The device enables controllable power output during stretching and release while maintaining a compact and lightweight architecture, making it suitable for miniaturized ...
Fatemeh Mokhtari, Alexander Volodine, Olivier Deschaume, Carmen Bartic, Albert de Kogel, Xuehang Wang, Russell J. Varley   +6 more
wiley   +1 more source

Multi-element fiber for space-division multiplexing

, 2013
A novel approach of using multi-element fiber (MEF) technology in space-division multiplexing (SDM) systems is presented. This paper reviews the progress in fabrication and characterization of MEF based both ultra-low crosstalk transmission and amplifier
V. J. F. Rancaño, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., T. C. May-Smith, S. Jain, J. K. Sahu, D. J. Richardson, P. Petropoulos, Sahu, J.K., Rancaño, V.J.F., A. Webb, Webb, A.   +13 more
core   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

FlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong, Jiaying Wang, Changsong Shi, Chi Guo, Songze Fu, Jie Tao, Xiaolong Chen, Yunfei Chen, Zhiyang Lyu   +8 more
wiley   +1 more source

Efficient higher-order mode filtering in multimode optical fiber based on an optical microwire

We report the use of an optical microwire (OMW) with specifically designed transition region as an efficient tool to filter higher-order modes in multimode waveguides.
Brambilla, Gilberto, Jung, Yongmin, Richardson, David J.   +2 more
core   +1 more source

Measurement of Intermode Dispersion in Short Sections of Multimode Optical Fiber Guides

Приборы и методы измерений
Measuring the intermode dispersion in short sections (from units to tens meters in length) of multimode optical fibers is often an actual task. Мethods used based on Mach–Zehnder interferometers have typical disadvantages inherent for interferometric ...
A. V. Polyakov, A. A. Kavalenia
doaj   +1 more source

Harnessing Optical Limiting in Saturable Absorbers for Reconfigurable Spectral Engineering of Ultrafast Fiber Lasers

Laser &Photonics Reviews, EarlyView.
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai, Weitao Wang, Masahiro Nomura, Sze Yun Set, Shinji Yamashita   +4 more
wiley   +1 more source

A Brief Review of Optical Fiber Sensor based on Multimode Interference

Guangtongxin yanjiu
Optical fiber sensors based on Multimode Interference (MMI) have received widespread attention due to their distinguished advantages, such as high sensitivity and easy fabrication.
YU Zhenfang, LI Yunfei, GUO Mingliang, LUO Bing, LUO Xinyi, GENG Dongxian   +5 more
doaj