Numerical analysis of beam distortion induced by thermal effects in chirped volume Bragg grating compressors for high-power lasers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00538092" target="_blank" >RIV/68378271:_____/20:00538092 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0315906" target="_blank" >http://hdl.handle.net/11104/0315906</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/JOSAB.409434" target="_blank" >10.1364/JOSAB.409434</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical analysis of beam distortion induced by thermal effects in chirped volume Bragg grating compressors for high-power lasers

Popis výsledku v původním jazyce

We conducted a study on the thermal effects in chirped volumeBragg gratings (CVBGs) used as optical compressors in high-power lasers. A simulation code was developed to predict the distortion of the pulses by the thermal effects. The types and significance of the thermal distortion were analyzed using an Yb:YAGlaser with an average power of 250W. The temperature distribution in the CVBG, the thermal lens effect, the beam propagation path changes due to the thermal lens, and the compression efficiency decrease due to the phase delaywere analyzed.As a result,we predict that the peak power decreases to 63.9% due to the thermal effects under the operating conditions of 250W.We also suggest new designs for the CVBG mount that minimize the peak power loss.We expect the peak power loss to be reduced only by 1.1% when using our new mount design for the CVBG.

Název v anglickém jazyce

Numerical analysis of beam distortion induced by thermal effects in chirped volume Bragg grating compressors for high-power lasers

Popis výsledku anglicky

We conducted a study on the thermal effects in chirped volumeBragg gratings (CVBGs) used as optical compressors in high-power lasers. A simulation code was developed to predict the distortion of the pulses by the thermal effects. The types and significance of the thermal distortion were analyzed using an Yb:YAGlaser with an average power of 250W. The temperature distribution in the CVBG, the thermal lens effect, the beam propagation path changes due to the thermal lens, and the compression efficiency decrease due to the phase delaywere analyzed.As a result,we predict that the peak power decreases to 63.9% due to the thermal effects under the operating conditions of 250W.We also suggest new designs for the CVBG mount that minimize the peak power loss.We expect the peak power loss to be reduced only by 1.1% when using our new mount design for the CVBG.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of the Optical Society of America. B

ISSN

0740-3224

e-ISSN

—

Svazek periodika

37

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

3874-3881

Kód UT WoS článku

000595619400040

EID výsledku v databázi Scopus

2-s2.0-85097732807