Results 11 to 20 of about 65,580 (195)

Low-Cost High-Sensitivity Strain and Temperature Sensing Using Graded-Index Multimode Fibers [PDF]

open access: yesApplied Optics, 2007
We report a low-loss, low-cost high-sensitivity all-fiber strain and temperature sensor based on mode interference in graded-index multimode fibers. Blueshifts with strain and temperature sensitivities of 18.6 pm/microstrain and 58.5 pm/°C have been ...
Liu, Yu, Wei, Li
core   +4 more sources

High-bandwidth graded-index polymer optical fiber [PDF]

open access: yesJournal of Lightwave Technology, 1995
High-bandwidth (2 GHz/spl middot/km) graded-index polymer optical fiber (GI POF) was successfully obtained by the new interfacial-gel polymerization technique in which the unreactive component was used in order to obtain the quadratic refractive-index distribution.
Y. Koike, T. Ishigure, E. Nihei
openaire   +3 more sources

Chalcogenide glass-based Low Loss Graded Index Photonic Crystal Fiber for non-linear applications in the Mid-IR regime

open access: yesResults in Optics, 2023
Computational modeling and numerical Investigation of a chalcogenide glass-based Graded-Index Photonic Crystal Fiber (GI-PCF) for the mid-infrared region has been put forth.
Jyoti Chauhan   +2 more
doaj   +1 more source

Intra-Cavity Raman Laser Operating at 1193 nm Based on Graded-Index Fiber

open access: yesPhotonics, 2022
Nonlinear Raman frequency conversion is an important technical scheme to obtain special optical band lasers based on conventional ion-doped lasers. In our work, we designed an intra-cavity Raman fiber laser based on graded index fiber (GRIF) as the Raman
Chunhua Hu, Ping Sun
doaj   +1 more source

Femtosecond Soliton Erbium-Doped Fiber Laser With a Symmetrical GIMF–SIMF–GIMF Saturable Absorber

open access: yesIEEE Photonics Journal, 2019
A femtosecond soliton erbium-doped fiber ring laser with the symmetrical saturable absorber (SA) of graded index multimode fiber-step index multimode fiber-graded index multimode fiber (GIMF-SIMF-GIMF) is proposed and proved.
Qian-Chao Wu   +7 more
doaj   +1 more source

Twist-Related Speckle Variation in Graded-Index Multimode Fiber

open access: yesIEEE Photonics Journal, 2018
We theoretically investigate a twist-related speckle variation in a graded-index multimode fiber. The simulation results show that by increasing the offset splicing distance between a single-mode fiber and a multimode fiber, the speckle pattern tends to ...
Hongye Li   +4 more
doaj   +1 more source

Beam self-cleaning in multimode optical fibers and hydrodynamic 2D turbulence [PDF]

open access: yes, 2019
We experimentally demonstrate the conservation of the average mode number in the process of Kerr beam self-cleaning in a graded-index multimode optical fiber, in analogy with wave condensation in hydrodynamic 2D ...
Babin, S. A.   +9 more
core   +1 more source

Graded-index solitons in multimode fibers

open access: yesOptics Letters, 2018
We investigate stability of optical solitons in graded-index (GRIN) fibers by solving an effective nonlinear Schrödinger equation that includes spatial self-imaging effects through a length-dependent nonlinear parameter. We show that this equation can be reduced to the standard NLS equation for optical pulses whose dispersion length is much longer than
Amira S. Ahsan, Govind P. Agrawal
openaire   +2 more sources

Orthogonal frequency-division multiplexing in wireless communication systems with multimode fiber feeds [PDF]

open access: yes, 2001
The feasibility of using multimode fiber as an inexpensive cell feed in broad-band indoor picocellular systems is investigated in this paper. The performance of coded orthogonal frequency-division multiplexing (OFDM) for a variety of multimode fiber ...
Dixon, B.J., Iezekiel, S., Pollard, R.D.
core   +1 more source

Cascaded Generation in Multimode Diode-Pumped Graded-Index Fiber Raman Lasers

open access: yesPhotonics, 2021
We review our recent experimental results on the cascaded Raman conversion of highly multimode laser diode (LD) pump radiation into the first- and higher-order Stokes radiation in multimode graded-index fibers.
Alexey G. Kuznetsov   +5 more
doaj   +1 more source

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