Numerical analysis of pump propagation and absorption in specially tailored double-clad rare-earth doped fiber

Kód výsledku v IS VaVaI

RIV/67985882:_____/15:00449022 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1007/s11082-015-0194-2

DOI - Digital Object Identifier

10.1007/s11082-015-0194-2

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical analysis of pump propagation and absorption in specially tailored double-clad rare-earth doped fiber

Popis výsledku v původním jazyce

We present a numerical analysis of multi-mode pump absorption in recently proposed double-clad fiber with stadium-like cross section of the inner cladding and asymmetrically placed rare-earth doped core. Such a cross section allows easy splicing of the multi-mode pump fiber and single-mode signal fiber to the double-clad fiber. The full-vector finite element beam propagation method was used as a numerical tool. In order to allow excitation of the structure by arbitrary field profile, definite set of functionals satisfying unisolvence condition together with hybrid edge-nodal finite element basis was derived. The flat-top field profile and more realistic speckle pattern were considered in the analysis. The effect of coiling and simultaneous twisting ofthe fiber was taken into account. It was found that the twisting of the DC fiber significantly improves the pump absorption

Název v anglickém jazyce

Numerical analysis of pump propagation and absorption in specially tailored double-clad rare-earth doped fiber

Popis výsledku anglicky

We present a numerical analysis of multi-mode pump absorption in recently proposed double-clad fiber with stadium-like cross section of the inner cladding and asymmetrically placed rare-earth doped core. Such a cross section allows easy splicing of the multi-mode pump fiber and single-mode signal fiber to the double-clad fiber. The full-vector finite element beam propagation method was used as a numerical tool. In order to allow excitation of the structure by arbitrary field profile, definite set of functionals satisfying unisolvence condition together with hybrid edge-nodal finite element basis was derived. The flat-top field profile and more realistic speckle pattern were considered in the analysis. The effect of coiling and simultaneous twisting ofthe fiber was taken into account. It was found that the twisting of the DC fiber significantly improves the pump absorption

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

GA14-35256S: Nové Ho-dopované nanomateriály na bázi křemenného skla pro výzkum vláknových laserů pracujících v oblasti 2 μm

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Optical and Quantum Electronics

ISSN

0306-8919

e-ISSN

—

Svazek periodika

47

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

3181-3191

Kód UT WoS článku

000361444100006

EID výsledku v databázi Scopus

2-s2.0-84941873858