Results 41 to 50 of about 1,510 (179)

Femtosecond‐Laser‐Inscribed Cladding Fiber Bragg Gratings: Architectures, Design Trade‐Offs and Future Sensing Opportunities

open access: yesLaser &Photonics Reviews, EarlyView.
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

INVESTIGATION ON HYBRID WDM (DWDM+CWDM) FREE SPACE OPTICAL COMMUNICATION SYSTEM [PDF]

open access: yesICTACT Journal on Communication Technology, 2015
Free Space Optical (FSO) communication is being realized as an effective solution for future accessing networks, offering light passed through air. The performance of FSO can be primarily degraded by various atmospheric attenuation namely, rain, fog ...
S. Robinson, S. Jasmine, R. Pavithra
doaj  

Orbital Angular Momentum Multiplexed Free-Space Optical Communication Systems Based on Coded Modulation

open access: yesApplied Sciences, 2018
In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing.
Zhen Qu, Ivan B. Djordjevic
doaj   +1 more source

RoFnet – Reconfigurable Radio over Fiber Network Architecture Overview

open access: yesJournal of Telecommunications and Information Technology, 2023
This paper introduces the basic operational concepts of the RoFnet – reconfigurable radio over fiber network, which is a project supported by the Portuguese Foundation forScience and Technology.
Maria C. R. Medeiros   +8 more
doaj   +1 more source

Photonic Integrated Circuit Platform on 3 μm Thick Silicon‐on‐Insulator and Its Application Examples

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
This paper gives an overview of the 3 μm SOI PIC platform and explains its unique characteristics, such as ultra‐high mode confinement, low losses, dense integration, polarization‐independent operation, small phase errors, and ultra‐broadband operation.
Timo Aalto   +9 more
wiley   +1 more source

Polarization‐Controlled Wavelength‐Tunable Pulsed Laser Based on Metafiber

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
A polarization‐sensitive Au‐nanorod metasurface has been proposed that integrates saturable absorption with wavelength‐tuning capabilities. By fabricating this metasurface structure on the facet of the fiber, known as a metafiber, low‐loss coupling between the metasurface and the fiber laser system is achieved.
Chenxi Zhang   +7 more
wiley   +1 more source

Enhanced Nonlinear Optical Absorption Properties and Carrier Dynamics of Violet Phosphorene by Oxidation for Ultrafast Photonic Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
This study investigates the effects of oxidation treatment on the nonlinear optical absorption properties and carrier dynamics of two‐dimensional violet phosphorene (VP), elucidating the underlying physical mechanisms. Furthermore, ultrashort laser pulses are achieved utilizing the enhanced saturation absorption and shortened carrier relaxation ...
Bo Li   +6 more
wiley   +1 more source

Design of Dual-resonator Six-channel WDM based on 2-D Photonic Crystal

open access: yesGuangtongxin yanjiu, 2023
In order to solve the problem of all-optical communication network capacity and spectral efficiency, a two-cavity six-channel Wavelength Division Multiplexer (WDM) based on the coupling characteristics of point-defect cavity and line-defect waveguide of ...
SU Mu-yang   +4 more
doaj  

All‐Polarization‐Maintaining Mode‐Locked Fiber Laser with Tunable Evolution of Dual‐Wavelength Pulse States

open access: yesAdvanced Photonics Research, Volume 7, Issue 8, August 2026.
An all‐polarization‐maintaining fiber laser is presented that enables flexible dual‐wavelength pulse manipulation by simply adjusting the PM‐SMF splicing angle. Through this precise adjustment, the system achieves controllable switching between asynchronous dual‐comb pulses and synchronous bound solitons, thereby providing a highly compact and robust ...
Yan Li   +8 more
wiley   +1 more source

Simulación de un enlace óptico WDM (Wavelength Division Multiplexing) utilizando POFs (Polymer Optical Fiber) en el espectro de luz visible

open access: yesMaskana, 2016
RESUMEN En este proyecto se analizaron las características y el modo de operación de las fibras ópticas plásticas en un enlace óptico WDM (Wavelenght Division Multiplexing) operando en el espectro visible.
Andrés Ocampo Dávila   +1 more
doaj  

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