Results 11 to 20 of about 49,160 (290)

Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports [PDF]

open access: yesOptics Express, 2004
We demonstrate a new class of hollow-core Bragg fibers that are composed of concentric cylindrical silica rings separated by nanoscale support bridges. We theoretically predict and experimentally observe hollow-core confinement over an octave frequency ...
Bjarklev, A.   +14 more
core   +5 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
openaire   +5 more sources

Tapered hollow-core photonic crystal fibers [PDF]

open access: yesEPJ Web of Conferences, 2022
In this communication, we will first review the recent advances of hollow-core photonic crystal fibers. Then, the possibility offered to tailor their optical properties by making tapers will be discussed.
Gérôme Frédéric   +4 more
doaj   +1 more source

Recent Advancement of Anti-Resonant Hollow-Core Fibers for Sensing Applications

open access: yesPhotonics, 2021
Specialty fibers have enabled a wide range of sensing applications. Particularly, with the recent advancement of anti-resonant effects, specialty fibers with hollow structures offer a unique sensing platform to achieve highly accurate and ultra-compact ...
Wenjun Ni   +8 more
doaj   +1 more source

Local Energy Velocity of the Air-Core Modes in Hollow-Core Fibers

open access: yesPhotonics, 2023
In this paper, we consider the behavior of the local energy flow velocity of the fundamental air-core mode at the core-cladding boundary in two types of hollow-core fibers: hollow-core fibers with a negative curvature of the core boundary and single ...
Andrey Pryamikov
doaj   +1 more source

Hollow-core fibers for high power pulse delivery [PDF]

open access: yesOptics Express, 2016
Alkeskjold, Thomas Tanggaard   +5 more
core   +3 more sources

Anti-resonance, inhibited coupling and mode transition in depressed core fibers [PDF]

open access: yes, 2020
The depressed core fiber (DCF), consisting of a low-index solid core, a high-index cladding and air surrounding, is in effect a bridge between the conventional step-index fiber and the tube-type hollow-core fiber from the point of view of the index ...
Farrell, Gerald   +6 more
core   +2 more sources

Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps

open access: yesIEEE Photonics Journal, 2022
Hollow-core fibers provide an ideal environment for the interaction of a laser and gases; however, achieving stable and efficient coupling of a high-power laser is one of the key problems to be solved.
Yulong Cui   +7 more
doaj   +1 more source

Birefringent Anti-Resonant Hollow-Core Fiber [PDF]

open access: yesJournal of Lightwave Technology, 2020
Hollow-core fibers have demonstrated record performance in applications such as high-power pulse delivery, quantum computing, and sensing. However, their routine use is yet to become reality. A major obstacle is the ability to maintain the polarization state of light over a broad range of wavelengths, while also ensuring low attenuation and single-mode
Stephanos Yerolatsitis   +5 more
openaire   +3 more sources

Review on All-Fiber Online Raman Sensor with Hollow Core Microstructured Optical Fiber

open access: yesPhotonics, 2022
Raman spectroscopy is widely used for qualitative and quantitative analysis of trace components in scientific fields such as food safety monitoring, drug testing, environmental monitoring, etc. In addition to its demonstrated advantages of fast response,
Haonan Ding   +5 more
doaj   +1 more source

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