Transmission of red-laser radiation by using Bragg fibers with air cores

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00241045" target="_blank" >RIV/68407700:21340/15:00241045 - isvavai.cz</a>

Alternative codes found

RIV/67985882:_____/15:00457525 RIV/68407700:21340/15:00241041

Result on the web

<a href="http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2293114" target="_blank" >http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2293114</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2181971" target="_blank" >10.1117/12.2181971</a>

Result language

angličtina

Original language name

Transmission of red-laser radiation by using Bragg fibers with air cores

Original language description

This paper presents experimental results on transmission characteristics of a Bragg fibers with an air core at a wavelength of 632 nm. The results are compared with those determined with the same fiber but at a wavelength of 1064 nm. The cladding of the fiber consists of three pairs of Bragg layers. Each pair is composed of one layer with a high and one layer with a low refractive index. A diameter of the air core is of about 50 µm. A theoretical modelling of Bragg fibers was carried out from which band gap characteristics of the fiber were determined for the refractive-index contrast of the high- and low-index layers on a level of 0.03 and wavelengths around 632 nm. Preforms of the Bragg fiber in the form of tubes were prepared by the MCVD method. Germanium dioxide and phosphorous pentoxide were used as silica dopants for the high-index layers. The low-index layers were fabricated of silica slightly doped with phosphorous pentoxide. The last layer applied was the high-index one. Bragg fibers were drawn from the tubes under controlled temperatures around 2000 °C in order to obtain the fibers with designed dimensions of Bragg claddings and air cores. Results of characterization of prepared fibers with optical microscopy are presented in the paper. The transmission and attenuation of the fibers at 632 nm were measured with a pulse He-Ne laser as a light source. Spatial distributions of output beams from the fibers were also determined.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

—

Project

<a href="/en/project/GAP102%2F12%2F2361" target="_blank" >GAP102/12/2361: Bragg fibers for delivery of high laser powers</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

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

Article name in the collection

Micro-structured and Specialty Optical Fibres IV

ISBN

9781628416282

ISSN

0277-786X

e-ISSN

—

Number of pages

7

Pages from-to

"95070Q-1"-"95070Q-7"

Publisher name

SPIE

Place of publication

Bellingham

Event location

Prague

Event date

Apr 13, 2015

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000356703700022