Results 21 to 30 of about 209,307 (271)

Two-dimensional mapping of surface scatterers on an optical fiber core using selective mode launching

open access: yesAPL Photonics, 2021
The tracking of small particles is an important but challenging task for biological applications such as disease diagnostics and medical research. Current methods are limited to the use of bulky instruments such as flow cytometers and microscopes.
Lu Peng   +7 more
doaj   +1 more source

Mid-infrared supercontinuum generation by tellurite oval-core optical fiber [PDF]

open access: yesEPJ Web of Conferences
For generating polarization-maintained mid-infrared supercontinuum light, we have simulated, and fabricated tellurite oval-core optical fiber. Polarization-maintained supercontinuum light from 1660 to 2570 nm has been generated from the fabricated ...
Takahata Keita   +4 more
doaj   +1 more source

Refractive Index Sensing Using Helical Broken-Circular-Symmetry Core Microstructured Optical Fiber

open access: yesSensors, 2022
Helical twist provides an additional degree of freedom for controlling light in optical waveguides, expanding their applications in sensing. In this paper, we propose a helical broken-circular-symmetry core microstructured optical fiber for refractive ...
Mingjie Cui, Zhuo Wang, Changyuan Yu
doaj   +1 more source

Passively mode-locked laser using an entirely centred erbium-doped fiber [PDF]

open access: yes, 2015
This paper describes the setup and experimental results for an entirely centred erbium-doped fiber laser with passively mode-locked output. The gain medium of the ring laser cavity configuration comprises a 3 m length of two-core optical fiber, wherein ...
Ahmad, H   +5 more
core   +1 more source

Opportunity and Challenge for Hollow Core Anti Resonant Optical Fiber in the Long-distance Telecommunication

open access: yesGuangtongxin yanjiu, 2023
The scientific research of Hollow Core Anti Resonant Optical Fiber (HCARF) has made a great breakthrough progress, which is expected to break through some inherent limitations of traditional optical fibers. The HCARF guides the light beam in the air core,
LI Ping, CHEN Wei
doaj  

In situ observation of modulated light emission of fiber fuse synchronized with void train over hetero-core splice point. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: Fiber fuse is a process of optical fiber destruction under the action of laser radiation, found 20 years ago. Once initiated, opical discharge runs along the fiber core region to the light source and leaves periodic voids whose shape looks ...
Shin-ichi Todoroki
doaj   +1 more source

$\mathcal{PT}$ phase control in circular multicore fibers

open access: yes, 2016
We consider light dynamics in a circular multicore fiber with balanced gain and loss core distribution, and show that transition from unbroken to broken $\mathcal{PT}$ phases can be conveniently controlled by geometric twist of the fiber.
Longhi, Stefano
core   +1 more source

Photonic quantum transport in a nonlinear optical fiber [PDF]

open access: yes, 2010
We theoretically study the transmission of few-photon quantum fields through a strongly nonlinear optical medium. We develop a general approach to investigate nonequilibrium quantum transport of bosonic fields through a finite-size nonlinear medium and ...
Chang, D. E.   +4 more
core   +2 more sources

Depolarized guided acoustic wave Brillouin scattering in hollow-core photonic crystal fibers

open access: yes, 2015
By performing quantum-noise-limited optical heterodyne detection, we observe polarization noise in light after propagation through a hollow-core photonic crystal fiber (PCF).
Elser, Dominique   +5 more
core   +1 more source

High sensitivity micro-fiber Mach-Zehnder interferometric temperature sensors with a high index ring layer [PDF]

open access: yes, 2019
The influence of the high index ring layer (HIRL) in a tapered fiber Mach-Zehnder interferometer (MZI) on the interference observed, and thus on its potential applications in temperature sensing, has been investigated.
B. M. A. Rahman   +30 more
core   +1 more source

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