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Hollow-core fiber imaging

Optica Advanced Photonics Congress 2022, 2022
Multimode fibers serve as high-resolution imaging probes. We show that a hollow-core fiber solves the problems of high background and limited NA. We experimentally demonstrate high-NA raster-scan and compressive imaging through a hollow-core multimode fiber.
Zhouping Lyu, Lyubov V. Amitonova
openaire   +1 more source

Interconnecting hollow-core fibers

2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM), 2021
Low-loss hollow-core fiber interconnection to standard optical fibers paves the way for high-finesse resonators, low-noise sensors, high-power delivery and next-generation fiber-optic communications. We will present main interconnection principles, discuss how back-reflection and higher-order mode excitation can be mitigated, and provide application ...
Matej Komanec   +8 more
openaire   +1 more source

Hollow-core grating fiber

Optics Communications, 2012
Abstract We propose a new type of hollow-core fiber where the propagation is ensured by a photoinduced self-pattern acting as a surface relief grating (SRG). The SRG is written by launching a suitable laser beam with proper polarization in a capillary glass fiber with the inner surface previously coated with an azopolymer thin film.
Barillé, R.   +5 more
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Polycarbonate hollow-core microstructured optical fiber

Optics Letters, 2008
A hollow-core microstructured polymer optical fiber is fabricated from polycarbonate material and guidance by inhibited coupling in a two-layer structure is demonstrated in two strong transmission bands with minimum losses of 9.0 dB/m at 800 nm and 3.1 dB/m at 1550 nm.
Martijn A, van Eijkelenborg   +2 more
openaire   +2 more sources

Polarization controller for hollow-core fiber

Optics Letters, 2007
We demonstrate a universal polarization controller for hollow-core fibers, a simple device consisting of three twisted fiber sections that makes use of the inherent birefringence of the air-core fiber. The device 5% bandwidth at 1550 nm is calculated from measured data to be approximately 13 nm.
Matthew, Terrel   +2 more
openaire   +2 more sources

Hollow-core photonic bandgap fiber polarizer

Optics Letters, 2008
Broadband, compact in-fiber polarizers were fabricated using a pulsed CO(2) laser to modify the air holes along one side of the hollow-core photonic bandgap fibers. The polarizers have lengths from 3 to 6 mm and exhibit a polarization extinction ratio of better than 20 dB over a wavelength range larger than 100 nm at approximately 1,550 nm.
Xuan, H   +6 more
openaire   +3 more sources

Simplified hollow-core photonic crystal fiber

Optics Letters, 2010
An original design of hollow-core photonic crystal fiber composed of a thin silica ring suspended in air by six silica struts is proposed. This structure can be viewed as a simplified Kagomé-lattice fiber reduced to one layer of air holes. By working on the core surround parameters, an efficient antiresonant air guiding was successfully demonstrated ...
Gérôme, Frédéric   +4 more
openaire   +4 more sources

Hollow-core microstructured polymer optical fiber

Optics Letters, 2006
We have fabricated microstructured polymer optical fibers that guide light in a hollow core using the photonic bandgap mechanism. The hollow core allows the use of polymer fibers to be extended to wavelength ranges where material absorption typically prohibits their use, with attenuation lower than the material loss observed in the infrared.
Alexander, Argyros   +3 more
openaire   +2 more sources

Birefringent hollow core fibers

SPIE Proceedings, 2007
Hollow core photonic crystal fiber (HC-PCF), fabricated according to a nominally non-birefringent design, shows a degree of un-controlled birefringence or polarization mode dispersion far in excess of conventional non polarization maintaining fibers.
openaire   +1 more source

Ultraviolet guiding hollow-core photonic crystal fiber

Optics Letters, 2009
We present what we believe to be the first experimental demonstration of low-loss guiding of UV radiation in hollow-core photonic crystal fiber. The "kagomé" latticed fiber was designed to guide 0.355 microm wavelength radiation with approximately 2 dB/m loss. Moreover, an excellent agreement between modeling and experimental results was obtained. From
Février, Sébastien   +5 more
openaire   +3 more sources

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