Air and silica core Bragg fibers for radiation delivery in the wavelength range 0.6-1.5 μm
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F16%3A00460276" target="_blank" >RIV/67985882:_____/16:00460276 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.yofte.2016.05.011" target="_blank" >http://dx.doi.org/10.1016/j.yofte.2016.05.011</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.yofte.2016.05.011" target="_blank" >10.1016/j.yofte.2016.05.011</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Air and silica core Bragg fibers for radiation delivery in the wavelength range 0.6-1.5 μm
Popis výsledku v původním jazyce
This paper presents fundamental characteristics of laboratory designed and fabricated Bragg fibers with air and silica cores at wavelengths of 632, 975, 1064 and 1550 nm. Fibers with the 26-μm-silica core and 5- or 73-μm-air cores in diameters and claddings of 3 pairs of Bragg layers were prepared from one preform. The overall transmittance, attenuation coefficients, coupling losses, bending losses, and damage-intensity thresholds were determined using four continuous-wave laser sources with the maximum output power of 300 mW and a pulsed 9 ns laser with the maximum output energy up to 1 mJ. The lowest attenuation coefficient of about 70 dB/km was determined at 1064 nm with the 73-μm-air-core Bragg fiber. All fibers have been found to exhibit negligible bending losses down to the bending diameters of 5 cm. In comparison with the conventional gradient optical fiber, all the prepared Bragg fibers have approximately six times higher damage intensity threshold of about 30 GWcm-2 and therefore they are very suitable for high power laser radiation delivery
Název v anglickém jazyce
Air and silica core Bragg fibers for radiation delivery in the wavelength range 0.6-1.5 μm
Popis výsledku anglicky
This paper presents fundamental characteristics of laboratory designed and fabricated Bragg fibers with air and silica cores at wavelengths of 632, 975, 1064 and 1550 nm. Fibers with the 26-μm-silica core and 5- or 73-μm-air cores in diameters and claddings of 3 pairs of Bragg layers were prepared from one preform. The overall transmittance, attenuation coefficients, coupling losses, bending losses, and damage-intensity thresholds were determined using four continuous-wave laser sources with the maximum output power of 300 mW and a pulsed 9 ns laser with the maximum output energy up to 1 mJ. The lowest attenuation coefficient of about 70 dB/km was determined at 1064 nm with the 73-μm-air-core Bragg fiber. All fibers have been found to exhibit negligible bending losses down to the bending diameters of 5 cm. In comparison with the conventional gradient optical fiber, all the prepared Bragg fibers have approximately six times higher damage intensity threshold of about 30 GWcm-2 and therefore they are very suitable for high power laser radiation delivery
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
JA - Elektronika a optoelektronika, elektrotechnika
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Optical Fiber Technology
ISSN
1068-5200
e-ISSN
—
Svazek periodika
31
Číslo periodika v rámci svazku
September
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
6
Strana od-do
36-41
Kód UT WoS článku
000384018300006
EID výsledku v databázi Scopus
2-s2.0-84973294651