High-Power Diode Laser Technology and Applications XIII 2015
DOI: 10.1117/12.2077558
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Assessment of high-power kW-class single-diode bars for use in highly efficient pulsed solid state laser systems

Abstract: 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-optical effici… Show more

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“…The key merits for diode laser pumping of solid state lasers are 1) efficient transport of pump power to the gain medium; 2) efficient absorption of pump radiation; 3) high uniformity of absorbed pump power density and 4) high durability under various working conditions [4][5]. Therefore, selection of diode laser pumping sources with the right wavelength, narrow spectral width, proper beam distribution, and high reliability needs to be taken into account.…”
Section: Lasers and Laser Systemsmentioning
confidence: 99%
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“…The key merits for diode laser pumping of solid state lasers are 1) efficient transport of pump power to the gain medium; 2) efficient absorption of pump radiation; 3) high uniformity of absorbed pump power density and 4) high durability under various working conditions [4][5]. Therefore, selection of diode laser pumping sources with the right wavelength, narrow spectral width, proper beam distribution, and high reliability needs to be taken into account.…”
Section: Lasers and Laser Systemsmentioning
confidence: 99%
“…Накачка твердотельных лазеров является одним из наиболее важных применений высокомощных диодных лазеров. На производительность DPSSLS в значительной степени влияют основные параметры источников накачки диодных лазеров, такие как выходная мощность, длина волны, ширина спектра и качество луча и т. д. Ключевыми преимуществами твердотельных лазеров с диодной накачкой являются: 1) эффективный перенос мощности насоса в усиливающую среду; 2) эффективное поглощение излучения накачки; 3) высокая однородность плотности поглощаемой мощности насоса и 4) высокая прочность в различных условиях работы [4][5]. Поэтому необходимо учитывать выбор источников диодной лазерной накачки с правильной длиной волны, узкой спектральной шириной, правильным распределением пучка и высокой надежностью.…”
Section: Lasers and Laser Systemsunclassified