Results 41 to 50 of about 321,039 (293)

Mode-Dependent Loss Equalized Few-Mode Fiber Photonic Lantern

open access: yesIEEE Photonics Journal
We propose and fabricate an unconventional photonic lantern that is not only able to achieve mode multiplexing and demultiplexing, but also has the functionality of mode-dependent loss equalization.
Yingxuan Li   +5 more
doaj   +1 more source

Experimental Study on Transverse Mode Instability Characteristics of Few-Mode Fiber Laser Amplifier Under Different Bending Conditions

open access: yesIEEE Photonics Journal, 2022
We studied the transverse mode instability (TMI) characteristics of few-mode fiber laser amplifier employing ytterbium-doped fiber (YDF) with core/cladding diameter of 30/400 μm under different bending diameters.
Yujun Wen   +6 more
doaj   +1 more source

Studies on Temperature and Strain Sensitivities of a Few-mode Critical Wavelength Fiber Optic Sensor [PDF]

open access: yes, 2018
This paper studied the relationship between the temperature/strain wavelength sensitivity of a fiber optic in-line Mach-Zehnder Interferometer (MZI) sensor and the wavelength separation of the measured wavelength to the critical wavelength (CWL) in a CWL-
Dong, X.   +5 more
core   +1 more source

Measuring Distributed Mode Scattering in Long, Few-Moded Fibers [PDF]

open access: yesOptical Fiber Communication Conference, 2012
We present measurements of higher-order modes in lengths of few-moded fibers up to 0.5 km long using Spatially and Spectrally resolved (S2) imaging. Both discrete scattering events and mode-mixing due to distributed scattering are measured.
Jesperson, K.   +5 more
openaire   +2 more sources

Graphene mode locked, wavelength-tunable, dissipative soliton fiber laser

open access: yes, 2010
Atomic layer graphene possesses wavelength-insensitive ultrafast saturable absorption, which can be exploited as a full-band mode locker. Taking advantage of the wide band saturable absorption of the graphene, we demonstrate experimentally that wide ...
Bao, Qiaoliang   +5 more
core   +1 more source

Concentric-Ring-Assisted Multimode Fiber Supports Numerous High-Order LP Beams

open access: yesPhotonics
This study proposes and numerically investigates the design and characterization of a ring-assisted (RA) fiber supporting 11 LP mode groups and a concentric-ring-assisted (CRA) fiber supporting 13 LP mode groups.
Chengyang Zhu   +5 more
doaj   +1 more source

Enhancement of modal stability through reduced mode coupling in a few-mode fiber for mode division multiplexing [PDF]

open access: yes, 2018
We demonstrate a novel approach to enhance the modal stability between the modes of a few-mode fiber (FMF) by increasing the effective index differences between these modes.
Argyros   +15 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Characterization of Few Mode Fibers by OLCI Technique [PDF]

open access: yes, 2014
International audienceAll LP modes of a few mode fiber are simultaneously characterized using phase-sensitive optical low-coherence interferometry. The differential modal group delay and absolute chromatic dispersion values of each mode are retrieved ...
Gabet, R.   +7 more
core   +3 more sources

Mode and Wavelength-Switchable Pulsed Fiber Laser With Few-Mode Fiber Grating [PDF]

open access: yesIEEE Photonics Technology Letters, 2019
We propose and demonstrate a mode and wavelength-switchable pulsed fiber laser using two-mode fiber Bragg grating (TM-FBG) as both transverse mode converter and wavelength selector. The mode-locking mechanism is based on saturable absorption of semiconductor saturable absorption mirror (SESAM).
Yu Cai   +4 more
openaire   +1 more source

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