Joule-class 940-nm diode laser bars for millisecond pulse applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00456909" target="_blank" >RIV/68378271:_____/15:00456909 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/LPT.2015.2434095" target="_blank" >http://dx.doi.org/10.1109/LPT.2015.2434095</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LPT.2015.2434095" target="_blank" >10.1109/LPT.2015.2434095</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Joule-class 940-nm diode laser bars for millisecond pulse applications

Popis výsledku v původním jazyce

The use of long resonators (for improved thermal and electrical resistance) and advanced facet passivation (for high power) is shown to enable Joule-class pulse emission from single passively cooled 1-cm diode laser bars emitting at 940 nm. Bars on CS-mount deliver pulse energy of 1 J at 60% power conversion efficiency within a 7-nm spectral window, under quasi-continuous wave conditions (1.2 ms 10 Hz). Robustness of device performance is confirmed via burn-in and multisite testing. Joule-per-bar performance is also maintained for conduction cooled monolithic stacked arrays, adapted for bars with long resonators. Although these packages only cool the laser bar via their rear edge, peak power, lateral far field, and spectral width remain consistent withthe requirements for pumping solid state lasers and scale as predicted with self-heating. An energy density >10 J/cm(2) is delivered from the stack surface, for brightness >3 MW/(cm(2)-sr).

Název v anglickém jazyce

Joule-class 940-nm diode laser bars for millisecond pulse applications

Popis výsledku anglicky

The use of long resonators (for improved thermal and electrical resistance) and advanced facet passivation (for high power) is shown to enable Joule-class pulse emission from single passively cooled 1-cm diode laser bars emitting at 940 nm. Bars on CS-mount deliver pulse energy of 1 J at 60% power conversion efficiency within a 7-nm spectral window, under quasi-continuous wave conditions (1.2 ms 10 Hz). Robustness of device performance is confirmed via burn-in and multisite testing. Joule-per-bar performance is also maintained for conduction cooled monolithic stacked arrays, adapted for bars with long resonators. Although these packages only cool the laser bar via their rear edge, peak power, lateral far field, and spectral width remain consistent withthe requirements for pumping solid state lasers and scale as predicted with self-heating. An energy density >10 J/cm(2) is delivered from the stack surface, for brightness >3 MW/(cm(2)-sr).

Druh

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

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

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

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

IEEE Photonics Technology Letters

ISSN

1041-1135

e-ISSN

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Svazek periodika

27

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

1663-1666

Kód UT WoS článku

000357830000024

EID výsledku v databázi Scopus

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