400W Yb:YAG Innoslab fs-Amplifier

Russbueldt, Peter; Mans, T.; Rotarius, G.; Weitenberg, Johannes; Hoffmann, Hans-Dieter; Poprawe, Reinhart

doi:10.1364/oe.17.012230

Cited by 180 publications

(97 citation statements)

References 21 publications

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“…We adopt the InnoSlab concept [9,10] for amplifying energetic picosecond pulses at 50-100 kHz repetition rates from a picosecond seed laser. This concept has been proven for the amplification of low-peak-power lasers without deteriorating beam quality and noise performance [9].…”

Section: Description Of the Amplifiermentioning

confidence: 99%

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High-energy picosecond Nd:YVO4 slab amplifier for OPCPA pumping

et al. 2011

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Section: Description Of the Amplifiermentioning

confidence: 99%

“…This concept has been proven for the amplification of low-peak-power lasers without deteriorating beam quality and noise performance [9]. Up to now, slab amplifiers have only been used for picosecond pulses in a side-pumped geometry yielding <20 MW peak power [6,7].…”

Section: Description Of the Amplifiermentioning

confidence: 99%

High-energy picosecond Nd:YVO4 slab amplifier for OPCPA pumping

et al. 2011

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“…In order to boost the pulse energy into the multi-tenmillijoule range an amplifier stage with a hybrid cavity according to the INNOSLAB concept [20] was employed. The thin Nd:YGG slab crystal (14.8 × 15 × 2 mm 3 ) was end pumped from both sides by a total of 44 laser diode bars through a free-space transfer optic.…”

Section: Transmitter Systemmentioning

confidence: 99%

Water vapor differential absorption lidar measurements using a diode-pumped all-solid-state laser at 935 nm

et al. 2010

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A diode-pumped, single-frequency laser system emitting at 935 nm has recently been developed to serve as the transmitter for water vapor differential absorption lidar (DIAL) measurements. This laser uses Nd:YGG (Y 3 Ga 5 O 12 ) as the active medium and emits radiation directly at 935 nm without the need of additional frequency conversion processes. The system was diode-pumped at 806 nm and was built up in a master-oscillator-poweramplifier configuration. It generates more than 30 mJ of pulse energy at 100 Hz repetition rate with a beam quality (M 2 ) of better than 1.4. Since water vapor DIAL demands for stringent requirements of the spectral properties those were carefully investigated in the scope of this paper. Single-frequency operation is achieved by injection seeding and active length control of the oscillator cavity. to ∼0.4 nm centered around 935.31 nm. Values of the spectral purity of >99.996% were determined using long-pass absorption measurements in the atmosphere exceeding the requirements by a large margin. Finally, for the first time water vapor DIAL measurements were performed using a Nd:YGG laser. The reported results show much promise of these directly pumped lasers at 935 nm for future spaceborne but also airborne water vapor lidar systems.

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“…Among the most popular geometries are fiber [8], thin-disk [9] and Innoslab concepts [10,11]. These geometries are mainly used for moderate (kHz) and high (MHz) pulse repetition rates of laser amplifiers.…”

Section: Introductionmentioning

confidence: 99%

Status of the High Average Power Diode-Pumped Solid State Laser Development at HiLASE

et al. 2015

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An overview of the latest developments of kilowatt-level diode pumped solid state lasers for advanced applications at the HiLASE Centre is presented. An overview of subcontracted and in-house-developed laser beamlines is presented. The aim of development is to build kW-class beamlines delivering picosecond pulses between 1-and 100-kHz repetition rates and high-energy nanosecond pulses at 10 Hz. The picosecond beamlines are based on Yb:YAG thin-disk amplifiers and chirped pulse amplification. The current status of the beamlines' performance is reported. The advantages of zero-phonon line and pulsed OPEN ACCESS Appl. Sci. 2015, 5638 pumping are demonstrated with respect to efficiency, thin disk temperature and beam quality. New diagnostics methods supporting the high average power lasers' development, such as the high-resolution spectroscopy of Yb-doped materials, in situ thin disk deformation measurements, single-shot M 2 measurement, realization of wavefront correction by a deformable mirror and the laser performance of a new mixed garnet ceramics, are described. The energetic, thermal and fluid-mechanical numerical modeling for the optimization of the multi-slab amplifiers is also described.

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400W Yb:YAG Innoslab fs-Amplifier

Cited by 180 publications

References 21 publications

High-energy picosecond Nd:YVO4 slab amplifier for OPCPA pumping

High-energy picosecond Nd:YVO4 slab amplifier for OPCPA pumping

Water vapor differential absorption lidar measurements using a diode-pumped all-solid-state laser at 935 nm

Status of the High Average Power Diode-Pumped Solid State Laser Development at HiLASE

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