Assessment of high-power kW-class single-diode bars for use in highly efficient pulsed solid state laser systems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00233129" target="_blank" >RIV/68407700:21340/15:00233129 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2077558" target="_blank" >http://dx.doi.org/10.1117/12.2077558</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2077558" target="_blank" >10.1117/12.2077558</a>

Result language
angličtina
Original language name
Assessment of high-power kW-class single-diode bars for use in highly efficient pulsed solid state laser systems
Original language description
In this work, we present measurements of efficiency-optimized 940 nm diode laser bars with long resonators that are constructed with robustly passivated output facets at the Ferdinand-Braun-Institut (FBH). The measurements were performed at room temperature on a test bench developed at HiLASE Centre, as a function of operating condition. The single-diode bars generated < 1.0 kW when tested with 1 ms pulses at 1-10Hz operating frequency, corresponding to < 1 J per pulse. The maximum electrical-to-opticalefficiency was < 60 %, with operating efficiency at 1 kW of < 50%, limited by the ~ 200 ?? resistance of the bar packaging. In addition, slow axis divergence at 1 kW was below 6° FWHM and spectral width at 1 kW was below 7 nm FWHM, as needed for pumpingYb-doped solid state amplifier crystals.
Czech name
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Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII
ISBN
978-1-62841-438-7
ISSN
0277-786X
e-ISSN
—
Number of pages
7
Pages from-to
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Publisher name
SPIE
Place of publication
Bellingham (stát Washington)
Event location
San Francisco, CA
Event date
Feb 7, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000353698600035

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