Results 21 to 30 of about 4,027,187 (303)

The Structural Defects and Optical Performance of Polarization-Maintaining Hollow-Core Photonic Bandgap fiber

open access: yesIEEE Photonics Journal, 2023
Hollow core photonic bandgap fiber (HC-PBGF) has potential in the application of fiber optics gyroscopes (FOGs) for its properties of low nonlinearity, and excellent environmental adaptability.
Lidong Wang   +8 more
doaj   +1 more source

Optical Properties of Microstructured Fibre Tuned by Filling with Magnetic Liquids

open access: yesAdvances in Electrical and Electronic Engineering, 2013
Alternative for adjust optical fiber light-guiding properties by bulk glass doping is provided by microstructured optical fibers, which allows access directly to the light guiding core via their microstructure.
Jan Vanda, Alessandro Candiani
doaj   +1 more source

Optical fiber sensing based on reflection laser spectroscopy [PDF]

open access: yes, 2010
An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo   +34 more
core   +1 more source

Design of Environmental Biosensor Based on Photonic Crystal Fiber with Bends Using Finite Element Method [PDF]

open access: yes, 2015
In this paper, a biosensor based on photonic crystal fiber (PCF) is proposed and designed using Full-Vectorial Finite Element Method (FVFEM). The proposed PCF sensor consists of three concentric circles surrounding the core.
Akowuah, Emmanuel Kofi   +9 more
core   +1 more source

Multi-element fiber for space-division multiplexed optical communication system [PDF]

open access: yes, 2014
This paper reviews a novel approach of implementing space-division multiplexing (SDM) based on Multi-element Fiber (MEF) technology. The MEF geometry provides for ultra-low crosstalk between the spatial channels while full compatibility with standard WDM
May-Smith, T.C.   +5 more
core   +2 more sources

Hollow core fiber with an octave spanning bandgap [PDF]

open access: yes, 2010
We thoroughly compare the out-of-plane bandgaps generated by three realistic two-dimensional lattices: a triangular and a square arrangement of holes and a triangular arrangement of rods.
Poletti, Francesco, Francesco Poletti
core   +1 more source

A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]

open access: yes, 2013
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
LEVI, FILIPPO   +13 more
core   +1 more source

Cladding-pumped Raman fiber with a W-type core designed for power scaling

open access: yes, 2009
We design a cladding-pumped fiber Raman amplifier with a wavelength-filtering W-type core for the suppression of the 2nd-order Raman Stokes.
Nilsson, J., Ji, J., Codemard, C.A.
core   +2 more sources

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

Hollow core fibers for optical amplification [PDF]

open access: yesOptics Letters, 2019
Hollow core optical fibers are normally passive light transport components. In contrast, within this Letter, we numerically investigate the possibility of using them as optical amplifiers, through the adoption of a novel fiber structure. We show that optical amplification can be achieved in hollow core fibers, where the cladding region is partially ...
Belardi, Walter   +2 more
openaire   +6 more sources

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