Results 11 to 20 of about 2,883,608 (277)

Hollow core fiber with an octave spanning bandgap [PDF]

open access: yesOptics Letters, 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. We demonstrate that, for any given hole-diameter-to-pitch ratio d/Lambda, the triangular arrangement of interconnected resonators generates the widest possible ...
Poletti, Francesco, Francesco Poletti
openaire   +6 more sources

Nested antiresonant nodeless hollow core fiber

open access: yesOptics Express, 2014
We propose a novel hollow core fiber design based on nested and non-touching antiresonant tube elements arranged around a central core. We demonstrate through numerical simulations that such a design can achieve considerably lower loss than other state-of-the-art hollow fibers.
Francesco Poletti
exaly   +4 more sources

Hollow-Core Photonic Crystal Fiber Gas Sensing

open access: yesSensors, 2020
Fiber gas sensing techniques have been applied for a wide range of industrial applications. In this paper, the basic fiber gas sensing principles and the development of different fibers have been introduced.
Ruowei Yu   +3 more
doaj   +3 more sources

Ultra-Low-Loss Hollow-Core Bragg Antiresonant Fiber With Super Bandwidth Transmission Window

open access: yesIEEE Photonics Journal, 2022
A novel hollow-core antiresonant fiber with a Bragg structure is proposed. It is numerically simulated using a commercial finite element method, and optical properties of the fiber, such as mode field, confinement loss, and bend loss, are numerically ...
Changming Xia   +9 more
doaj   +1 more source

Microwave Discharge in Hollow Optical Fibers as a Pump for Gas Fiber Lasers

open access: yesPhotonics, 2022
To excite plasma in the core of a hollow fiber, a scheme similar to a slot antenna in the wall of a metal microwave waveguide was proposed and implemented.
Alexey Gladyshev   +6 more
doaj   +1 more source

All-fiber hollow-core fiber gas cell [PDF]

open access: yesOptical Fiber Technology, 2023
We present a hollow-core fiber (HCF) gas cell with light launched and collected via standard solid-glass core single-mode fibers (SMFs). Gas delivery is realized via a 100μm gap between the SMF and HCF with light low-loss coupling optimized for such a gap.
Dmytro Suslov   +7 more
openaire   +2 more sources

Behaviour of long span composite beams with precast hollow-core slabs [PDF]

open access: yes, 2007
The use of precast hollow-core concrete slabs with Fabsec steel beams in composite construction has had little research conducted in this area.
Murad, Ali
core   +7 more sources

Low-Loss Low-Back-Reflection Coupling of Hollow-Core Photonic Bandgap Fiber With Integrated-Optic Circuit in Fiber Optic Gyroscope

open access: yesIEEE Access, 2020
Photonic bandgap fiber-optic gyroscope has excellent environment adaptability and shows great prospect. The coupling between hollow-core photonic bandgap fiber coil and integrated-optic circuit is a crucial technology in photonic bandgap fiber-optic ...
Ningfang Song   +5 more
doaj   +1 more source

Hollow core photonic bandgap fibers for telecommunications: opportunities and potential issues [PDF]

open access: yes, 2012
We discuss the potential advantages that hollow core photonic bandgap fibers may ultimately have over conventional all solid fibers and review the state-of-the-art, fundamental physical limits and the many technological challenges to be ...
Petrovich, M.N.   +6 more
core   +2 more sources

Hollow-Core Optical Fibers [PDF]

open access: yesFibers, 2019
The possibility of guiding light in air has fascinated optical scientists and engineers since the dawn of optical fiber technology [...]
openaire   +7 more sources

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