Experimental Investigation of Delivery and Spectral Broadening of Nanosecond Laser Pulses in Bragg fiber with Silica Core

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00309448" target="_blank" >RIV/68407700:21340/13:00309448 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/CLEOE-IQEC.2013.6801400" target="_blank" >http://dx.doi.org/10.1109/CLEOE-IQEC.2013.6801400</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CLEOE-IQEC.2013.6801400" target="_blank" >10.1109/CLEOE-IQEC.2013.6801400</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Investigation of Delivery and Spectral Broadening of Nanosecond Laser Pulses in Bragg fiber with Silica Core

Popis výsledku v původním jazyce

Different types of optical fibers have been studied for delivery of high optical powers. Silica and plastic fibers are used for the VIS and NIR spectral ranges, while sapphire, hollow-core, Bragg, or photonic crystal fibers can be used also in the mid-IR range. Bragg fibers with silica cores and large fundamental-mode area could be an attractive solution for the high laser power delivery at 1064 nm. In this paper we present results of the experimental investigation of nanosecond laser pulse propagation through a laboratory-fabricated Bragg fiber with a silica core similar to fiber used in but with higher refractive index contrast. Our Bragg fiber consists of a silica core with the diameter of ~30 μm surrounded by three circular bilayers composed of one layer with a high and one layer with a low refractive index with a contrast up to 0.035. For the high power delivery experiments a laboratory-designed passively Q-switched quasi-continuously pumped Nd:YAG laser in a bounce geometry was used as a radiation source. The single pulses with the duration of 9 ns and the energy up to 1 mJ at 1.06 μm in nearly fundamental transversal mode were coupled into the fiber using a single lens L1. The experimental setup is shown in Fig. 1.

Název v anglickém jazyce

Experimental Investigation of Delivery and Spectral Broadening of Nanosecond Laser Pulses in Bragg fiber with Silica Core

Popis výsledku anglicky

Different types of optical fibers have been studied for delivery of high optical powers. Silica and plastic fibers are used for the VIS and NIR spectral ranges, while sapphire, hollow-core, Bragg, or photonic crystal fibers can be used also in the mid-IR range. Bragg fibers with silica cores and large fundamental-mode area could be an attractive solution for the high laser power delivery at 1064 nm. In this paper we present results of the experimental investigation of nanosecond laser pulse propagation through a laboratory-fabricated Bragg fiber with a silica core similar to fiber used in but with higher refractive index contrast. Our Bragg fiber consists of a silica core with the diameter of ~30 μm surrounded by three circular bilayers composed of one layer with a high and one layer with a low refractive index with a contrast up to 0.035. For the high power delivery experiments a laboratory-designed passively Q-switched quasi-continuously pumped Nd:YAG laser in a bounce geometry was used as a radiation source. The single pulses with the duration of 9 ns and the energy up to 1 mJ at 1.06 μm in nearly fundamental transversal mode were coupled into the fiber using a single lens L1. The experimental setup is shown in Fig. 1.

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP102%2F12%2F2361" target="_blank" >GAP102/12/2361: Braggovská vlákna pro přenos vysokých energií laserů</a><br>

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

CLEO/Europe-EQEC 2013 Conference Digist

ISBN

978-1-4799-0594-2

ISSN

—

e-ISSN

—

Počet stran výsledku

1

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

New Jersey

Místo konání akce

Mnichov

Datum konání akce

12. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000355316301110