Results 1 to 10 of about 518 (150)

Accelerated nonlinear interactions in graded-index multimode fibers [PDF]

Nature Communications, 2019
Multimode optical fibers can be used to observe complex intermodal processes like optical solitons. Here, Eftekhar et al. study accelerated nonlinear interaction in multimode fibers with a tapered core diameter and its effect on the temporal and spectral
M. A. Eftekhar, Z. Sanjabi-Eznaveh, H. E. Lopez-Aviles, S. Benis, J. E. Antonio-Lopez, M. Kolesik, F. Wise, R. Amezcua-Correa, D. N. Christodoulides   +8 more
doaj   +5 more sources

Multimode soliton collisions in graded-index optical fibers [PDF]

Optics Express, 2022
In this work, we unveil the unique complex dynamics of multimode soliton interactions in graded-index optical fibers through simulations and experiments. By generating two multimode solitons from the fission of an input femtosecond pulse, we examine the evolution of their Raman-induced red-shift when the input pulse energy grows larger.
Fabio Mangini, Mario Ferraro, Yifan Sun
exaly   +8 more sources

Intermodal all-optical pulse switching and frequency conversion using temporal reflection and refraction in multimode fibers [PDF]

Nanophotonics
In this work, we extend temporal reflection and refraction analogies from the case of singlemode optical fibers to multimode fibers. Specifically, we show that nonlinear multimode fibers provide novel degrees of freedom that permit us to control optical ...
Sparapani Alexis C., Sun Yifan, Mangini Fabio, Ferraro Mario, Agrawal Govind P., Wabnitz Stefan   +5 more
doaj   +2 more sources

Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers [PDF]

Sensors, 2012
Fiber-optic interferometric sensors based on graded-index multimode fibers have very high refractive-index sensitivity, as we previously demonstrated. In this paper, spatial-frequency multiplexing of this type of fiber-optic refractive index sensors is ...
Hui-Juan Wu, Yun-Jiang Rao, Tian Zhao, Yu Wu, Yuan Gong, Li Liu   +5 more
doaj   +2 more sources

Space-time wave packets in multimode optical fibers with controlled dynamic motions and tunable group velocities [PDF]

Nature Communications
Space-time wave packets (STWPs) with correlated spatial and frequency degrees of freedom exhibit time-dependent spatial interference, thereby giving rise to interesting dynamic evolution behaviors.
Xinzhou Su, Kaiheng Zou, Yingning Wang, Murat Yessenov, Huibin Zhou, Hao Song, Wing Ko, Ruoyu Zeng, Abdulrahman Alhaddad, Murale Ramakrishnan, Yuxiang Duan, Ayman F. Abouraddy, Moshe Tur, Demetrios N. Christodoulides, Alan E. Willner   +14 more
doaj   +2 more sources

Photonic neural networks at the edge of spatiotemporal chaos in multimode fibers [PDF]

Nanophotonics
Optical computing has gained significant attention as a potential solution to the growing computational demands of machine learning, particularly for tasks requiring large-scale data processing and high energy efficiency.
Kesgin Bahadır Utku, Teğin Uğur
doaj   +2 more sources

Pulsed Raman Lasing in Diode-Pumped Multimode Graded-Index Fiber with Tuned Femtosecond-Laser-Inscribed Bragg Grating [PDF]

Micromachines
Raman lasers based on multimode graded-index (GRIN) fibers directly pumped by laser diodes are the object of intensive research, promising to produce high-power, high-quality beams at new wavelengths.
Alexey G. Kuznetsov, Vadim S. Terentyev, Alexander V. Dostovalov, Ilya N. Nemov, Sergey A. Babin   +4 more
doaj   +2 more sources

High bandwidth performance of newly designed multimode W-type microstructured plastic optical fibers with graded-index core distribution [PDF]

Scientific Reports
A new design of multimode W-type (doubly clad) microstructured plastic optical fiber (mPOF) with graded-index (GI) distribution of the core is proposed, along with a methodology for examining transmission along it.
Ana Simović, Branko Drljača, Milan S. Kovačević, Ljubica Kuzmanović, Alexandar Djordjevich, Konstantinos Aidinis, Changyuan Yu, Xiong Deng, Svetislav Savović   +8 more
doaj   +2 more sources

Raman Lasing and Transverse Mode Selection in a Multimode Graded-Index Fiber with a Thin-Film Mirror on Its End Face [PDF]

Micromachines
Multimode fibers are attractive for high-power lasers if transverse modes are efficiently controlled. Here, a dielectric thin-film mirror (R~20%) is micro-fabricated on the central area of the end face of a 1 km multimode 100/140 µm graded-index fiber ...
Alexey G. Kuznetsov, Vadim S. Terentyev, Victor A. Simonov, Hiba A. Rizk, Ilya N. Nemov, Kirill A. Bronnikov, Alexander V. Dostovalov, Sergey A. Babin   +7 more
doaj   +2 more sources

Power Flow in Multimode Graded-Index Microstructured Polymer Optical Fibers. [PDF]

Polymers (Basel), 2023
We investigate mode coupling in a multimode graded-index microstructured polymer optical fiber (GI mPOF) with a solid core by solving the time-independent power flow equation (TI PFE). Using launch beams with various radial offsets, it is possible to calculate for such an optical fiber the transients of the modal power distribution, the length Lc at ...
Savović S, Simović A, Drljača B, Kovačević MS, Kuzmanović L, Djordjevich A, Aidinis K, Min R.   +7 more
europepmc   +3 more sources