Joule-class 940-nm diode laser bars for millisecond pulse applications
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Joule-class 940-nm diode laser bars for millisecond pulse applications
Original language description
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).
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Photonics Technology Letters
ISSN
1041-1135
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
15
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
1663-1666
UT code for WoS article
000357830000024
EID of the result in the Scopus database
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