Results 91 to 100 of about 491,185 (233)

Observation of multimode solitons in few-mode fiber

open access: yesOptics Letters, 2016
We experimentally isolate and directly observe multimode solitons in few-mode graded-index fiber. By varying the input energy and modal composition of the launched pulse, we observe a continuous variation of multimode solitons with different spatiotemporal properties. They exhibit an energy-volume relation that is distinct from those of single-mode and
Zhu, Zimu   +3 more
openaire   +4 more sources

Long-period fiber gratings inscribed in few-mode fibers for discriminative determination.

open access: yesOptics Express, 2019
We successfully fabricated the long-period fiber gratings in few-mode fibers (FMF-LPFGs) with micro-tapered method, which are different from the traditional LPFGs that only couple the fundamental mode to different cladding modes to obtain multiple ...
Bing Li   +8 more
semanticscholar   +1 more source

High-resolution and broadband all-fiber spectrometers

open access: yes, 2014
The development of optical fibers has revolutionized telecommunications by enabling long-distance broad-band transmission with minimal loss. In turn, the ubiquity of high-quality low-cost fibers enabled a number of additional applications, including ...
Alam, Mansoor   +3 more
core   +1 more source

Orbital chirality of light in few-mode step-index optical fibers

open access: yesAPL Photonics
A physical system is considered chiral when it can be distinguished from its mirror image, regardless of the applied translation and rotation. An electromagnetic wave can be chiral through its two essential forms of angular momenta: spin and orbital ...
Karolina Stefańska   +4 more
doaj   +1 more source

A single atom detector integrated on an atom chip: fabrication, characterization and application

open access: yes, 2010
We describe a robust and reliable fluorescence detector for single atoms that is fully integrated into an atom chip. The detector allows spectrally and spatially selective detection of atoms, reaching a single atom detection efficiency of 66%.
B Hessmo   +17 more
core   +1 more source

Fully integrated optical isolators for space division multiplexed (SDM) transmission

open access: yesAPL Photonics, 2019
A micro-optic collimator assembly represents an important platform for the realization of many commonly used fiber optic components and devices including optical isolators, circulators, gain flattening filters, and so on.
Yongmin Jung   +5 more
doaj   +1 more source

Intermodal Four-Wave-Mixing and Parametric Amplification in km-long Fibers

open access: yes, 2017
We theoretically and numerically investigate intermodal four-wave-mixing in km-long fibers, where random birefringence fluctuations are present along the fiber length. We identify several distinct regimes that depend on the relative magnitude between the
Fatome, Julien   +4 more
core   +1 more source

Modal decomposition for few mode fibers using the fractional Fourier system.

open access: yesOptics Express, 2019
Modal decomposition (MD) has become an indispensable diagnostic tool for optical fibers. A novel MD method using the fractional Fourier system is developed in this paper.
Wei Yan, Xiaojun Xu, Jianguo Wang
semanticscholar   +1 more source

Few-Mode Fiber Coupled Superconducting Nanowire Single-Photon Detectors for Photon Efficient Optical Communications [PDF]

open access: yes
The NASA Glenn Research Center's development of a high-photon efficiency real-time optical communications ground receiver has added superconducting nanowire single-photon detectors (SNSPDs) coupled with few-mode fibers (FMF).
Katz, Evan J.   +3 more
core   +1 more source

Finite element analysis of photonic crystal fibers [PDF]

open access: yes, 2005
A finite-element-based vectorial optical mode solver, furnished with Bayliss-Gunzburger-Turkel-like transparent boundary conditions, is used to rigorously analyze photonic crystal fibers (PCFs).
Groesen, E. van   +2 more
core   +2 more sources

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