Results 121 to 130 of about 77,584 (300)

Twist Sensor Based on Long Period Grating and Tilted Bragg Grating Written in Few-Mode Fibers

IEEE Photonics Journal, 2018
A twist sensor based on a few-mode long period grating (LPG) and a tilted fiber Bragg grating (TFBG) is proposed and demonstrated. The LPG, inscribed in a step index few-mode fiber by a CO2 laser, is utilized to excite the LP11 core mode.
Kang Yang, Yange Liu, Zhi Wang, Yan Li, Ya Han, Hongwei Zhang   +5 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Forward Brillouin scattering in few-mode fibers

Light: Science & Applications
Abstract Forward Brillouin scattering is an opto-mechanical effect in which two co-propagating optical fields couple with an acoustic mode in a common medium. The effect has been studied in standard optical fibers since 1985, however nearly all studies have been limited to the single optical mode regime. Forward Brillouin scattering in single-
Layosh, Elad, Zehavi, Elad, Bernstein, Alon, Hen, Mirit, Holsblat, Maayan, Pearl, Ori, Zadok, Avi   +6 more
openaire   +2 more sources

Comparative Research on Mode Permutation Strategies in Mode-division Multiplexing Systems

Guangtongxin yanjiu
【Objective】Mode-division multiplexing is a key technology to break through the capacity limit of single-mode fiber systems. In the few-mode fiber links, the pulse broadening caused by intermodal dispersion increases the complexity of multiple-input ...
GAO Tianyu, WANG Yanze, LIU Yaping, YANG Zhiqun, ZHANG Lin   +4 more
doaj  

All-fiber few-mode interference for complex azimuthal pattern generation

Scientific Reports
We report on an all-fiber setup capable of generating complex intensity patterns using interference of few guided modes. Comprised by a few-mode fiber (FMF) spliced to a multimodal interference (MMI) fiber device, the setup allows for obtaining different
Josué I. Gómez-Méndez, Rodolfo A. Carrillo-Betancourt, Daniel A. May-Arrioja, Amado M. Velázquez-Benítez, Natanael Cuando-Espitia, Juan Hernández-Cordero   +5 more
doaj   +1 more source

Design of Self-Matching Photonic Lantern for High-Order Transverse-Mode Laser Systems

Photonics
High-order transverse-mode lasers have important potential application value in many fields. To address the current issue of the limited controllability of modes in high-order transverse-mode lasers, we have designed a self-matching photonic lantern ...
Li Zhao, Wei Li, Yunhao Chen, Enming Zhao, Jianing Tang   +4 more
doaj   +1 more source

Few-Mode Fiber Lasers and Amplifiers

, 2020
Lasers and amplifiers of high-order spatial modes are useful for a number of applications, including communication, sensing, microscopy, and laser material processing.
Wang, Ning
core  

All-fiber few-mode multicore photonic lantern mode multiplexer

, 2017
The emergence of space division multiplexing (SDM) for ultrahigh capacity networks has heralded pioneering Petabit-class optical transmission systems.
Sanjabi Eznaveh, Z, Alvarado Zacarias, J. C., Antonio-Lopez, JE, J. E. Antonio-Lopez, Antonio-Lopez, J.E., J. C. Alvarado Zacarias, Antonio-Lopez, J. E., Okonkwo, C.M.; id_orcid, Z. Sanjabi Eznaveh, Alvarado-Zacarias, Juan Carlos, Okonkwo, C. M., Okonkwo, C.M., Schülzgen, A., Amezcua Correa, R., A. Schülzgen, Schülzgen, A, R. Amezcua Correa, C. M. Okonkwo, Alvarado Zacarias, J.C., Sanjabi Eznaveh, Z., Okonkwo, CM Chigo, Amezcua-Correa, Rodrigo   +21 more
core   +1 more source

All-fiber CW cylindrical vector beam fiber laser based on few-mode fiber Bragg grating [PDF]

, 2017
An all-fiber CW cylindrical vector beam (CVB) fiber laser based on a few-mode fiber Bragg grating (FW-FBG) with switchable radially and azimuthally polarized beam generation has been demonstrated.
Lin Zhang, Jiaojiao Zhang, Zhang, Zuxing, Zhang, Jiaojiao, Zuxing Zhang, Hongdan Wan, Zhang, Lin, Wan, Hongdan   +7 more
core   +1 more source

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source