Scanning Cutback Method for Characterization of Bragg Fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00327235" target="_blank" >RIV/68407700:21340/18:00327235 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/JLT.2018.2806445" target="_blank" >http://dx.doi.org/10.1109/JLT.2018.2806445</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/JLT.2018.2806445" target="_blank" >10.1109/JLT.2018.2806445</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Scanning Cutback Method for Characterization of Bragg Fibers

Popis výsledku v původním jazyce

In this paper, a scanning cutback method, developed for the investigation of Bragg fibers waveguide characteristics, is presented. The method relies on fiber excitation by a laser beam focused onto the fiber core and cladding with different radial offsets from the fiber axis and on measuring the delivered power. These variable coupling conditions and the cutback technique allow us to determine a set of attenuation coefficients and coupling efficiencies. The method has been employed for the characterization of silica and air core Bragg fibers with core diameters of 26 mu m and 56 mu m, respectively. Laser radiation delivery was investigated at wavelengths of 1.064 and 1.940 mu m. Curves of the attenuation coefficient and coupling efficiency as a function of the radial offset show the effects of excitation and propagation of different optical modes in the Bragg fibers. Spatial profiles of the delivered output beams are also presented, which enables us to determine the part of the fiber structure in which the laser radiation is guided.

Název v anglickém jazyce

Scanning Cutback Method for Characterization of Bragg Fibers

Popis výsledku anglicky

In this paper, a scanning cutback method, developed for the investigation of Bragg fibers waveguide characteristics, is presented. The method relies on fiber excitation by a laser beam focused onto the fiber core and cladding with different radial offsets from the fiber axis and on measuring the delivered power. These variable coupling conditions and the cutback technique allow us to determine a set of attenuation coefficients and coupling efficiencies. The method has been employed for the characterization of silica and air core Bragg fibers with core diameters of 26 mu m and 56 mu m, respectively. Laser radiation delivery was investigated at wavelengths of 1.064 and 1.940 mu m. Curves of the attenuation coefficient and coupling efficiency as a function of the radial offset show the effects of excitation and propagation of different optical modes in the Bragg fibers. Spatial profiles of the delivered output beams are also presented, which enables us to determine the part of the fiber structure in which the laser radiation is guided.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA16-10019S" target="_blank" >GA16-10019S: Braggovská vlákna pro přenos laserového záření ve spektrální oblasti 1900-2300 nm</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE/OSA Journal of Lightwave Technology

ISSN

0733-8724

e-ISSN

1558-2213

Svazek periodika

36

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

2271-2277

Kód UT WoS článku

000443184300006

EID výsledku v databázi Scopus

2-s2.0-85042088477