Results 1 to 10 of about 48,353 (296)
Some of the next articles are maybe not open access.
Recent Breakthroughs in Hollow Core Fiber Technology
Optical Fiber Communication Conference (OFC) 2021, 2021The performance of Hollow Core Fibers has improved dramatically over the last 6 years. We report progress of the most successful design, Nested Antiresonant Nodeless Fiber, with losses of 0.28 dB/km.
Jasion, Gregory T. +10 more
openaire +3 more sources
Simplified hollow-core photonic crystal fiber
Optics Letters, 2010An 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
Birefringent hollow core fibers
SPIE Proceedings, 2007Hollow 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
Hollow-core microstructured polymer optical fiber
Optics Letters, 2006We 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
Polycarbonate hollow-core microstructured optical fiber
Optics Letters, 2008A 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
Characteristics of gas breakdown in hollow-core fibers
SPIE Proceedings, 2008We succeeded in obtaining gas discharge in 250-, 150-, and 50-mum inner-diameter (i.d.) hollow-core fibers (HCFs) by using longitudinal direct current excitation. Stable glow discharges of at least several minutes were observed for these HCFs. A flash glow was also observed for an HCF with an i.d. of ~20 mum. Breakdown of helium and argon gases in a 26.
X. Shi +3 more
openaire +1 more source
Non-Idealities in Hollow Core Inhibited Coupling Fibers
2020 22nd International Conference on Transparent Optical Networks (ICTON), 2020Hollow Core Inhibited Coupling Fibers are experiencing an impressive reduction of their propagation loss. Despite that, there is still a difference between experimental loss and the theoretical minimum defined by confinement loss. This difference is assumed to be due to additional losses caused by geometrical irregularities of the real fibers compared ...
Melli F. +3 more
openaire +2 more sources
Hollow-core photonic bandgap fiber polarizer
Optics Letters, 2008Broadband, 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
Ultraviolet guiding hollow-core photonic crystal fiber
Optics Letters, 2009We 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
2010
The first optical-frequency hollow waveguides were simple parallel-plate guides. The early pioneering work in this field was done by Garmire et al. Her group made a rectangular waveguide using aluminum strips separated by about 0.5 mm with bronze shim stock. This structure is shown in Fig. 3.2. Even when the aluminum was not well polished, these guides
openaire +1 more source
The first optical-frequency hollow waveguides were simple parallel-plate guides. The early pioneering work in this field was done by Garmire et al. Her group made a rectangular waveguide using aluminum strips separated by about 0.5 mm with bronze shim stock. This structure is shown in Fig. 3.2. Even when the aluminum was not well polished, these guides
openaire +1 more source