Design of high-energy-class cryogenically cooled Yb3+∶YAG multislab laser system with low wavefront distortion

Divoký, Martin; Sikocinski, Pawel; Pilař, Jan; Lucianetti, Antonio; Sawicka, Magdalena; Slezák, Ondřej; Mocek, Tomáš

doi:10.1117/1.oe.52.6.064201

Cited by 20 publications

(23 citation statements)

References 9 publications

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“…As an example of preliminary test, Figure 6 reports the acquisition of the far-field images obtained by setting as a target aberration of the closed loop the aberration calculated with the thermo-optical simulation of the HiLASE amplifier as reported in Refs. [3][4][5]. Figure 6(b) shows the spot image when the DM has realized the amplifier aberration with an error smaller of 0.08 waves r.m.s.…”

Section: Resultsmentioning

confidence: 99%

“…In the case of multi-slab amplifier [4][5][6] , the laser beam is amplified in composite slabs of active media and absorptive cladding which is present for reduction of parasitic oscillations. For example, in the case of the HiLASE laser [8] four numerical models have been developed in order to estimate the thermal effects within the gain media, optical aberrations introduced by the main multi-slab amplifier (see Figure 1) and the wavefront correction.…”

Section: Thermo-optical Simulationsmentioning

confidence: 99%

“…The important parameters to be estimated are: maximum required DM deformation (stroke), spatial frequency and temporal evolution of the aberrations. The aberrations can be calculated with simulations [3][4][5] using numerical models or estimated by previous experiments on similar systems [6,7] .…”

Section: Design Parametersmentioning

confidence: 99%

“…The third numerical model simulates the propagation of laser beam in the main laser amplifier by using a laser propagation program for high peak power laser (Miró software [9] ) and estimates the output beam characteristics [4] . By using the optical path difference (OPD) estimate from the output of the Miró model, the performance of the DM has been estimated by the fourth numerical model [5] .…”

Section: Thermo-optical Simulationsmentioning

confidence: 99%

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Design of deformable mirrors for high power lasers

Bonora

Pilař

Lucianetti

et al. 2016

High Pow Laser Sci Eng

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We present the workflow of the design, realization and testing of deformable mirrors suitable for high power diode pumped solid-state lasers. It starts with the study of the aberration to be corrected, and then it continues with the design of the actuators position and characteristic. In this paper, we present and compare three deformable mirrors realized for multi-J level laser facilities. We show that with the same design concept it is possible to realize deformable mirrors for other types of lasers. As an example, we report the realization of a deformable mirror for femtosecond lasers and for a CW CO 2 laser.

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Section: Resultsmentioning

confidence: 99%

Section: Thermo-optical Simulationsmentioning

confidence: 99%

Section: Design Parametersmentioning

confidence: 99%

Section: Thermo-optical Simulationsmentioning

confidence: 99%

See 2 more Smart Citations

Design of deformable mirrors for high power lasers

Bonora

Pilař

Lucianetti

et al. 2016

High Pow Laser Sci Eng

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“…Note that the residual depolarization is not affected by the optimization of the slab geometry or the beam rotation between amplifier heads and remains close to 1%. The total OPD that includes beam rotation between amplifiers, aberrations from optical elements, including the Seidel aberrations and manufacturing defects, the output beam shape and wavefront correction can be found in [61].…”

Section: Numerical Modelling Of Laser Amplifiersmentioning

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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Design of a kJ-class HiLASE laser as a driver for inertial fusion energy

Lucianetti

Sawicka

Slezák

et al. 2014

High Pow Laser Sci Eng

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We present the results of performance modeling of a diode-pumped solid-state HiLASE laser designed for use in inertial fusion energy power plants. The main amplifier concept is based on a He-gas-cooled multi-slab architecture similar to that employed in Mercury laser system. Our modeling quantifies the reduction of thermally induced phase aberrations and average depolarization in Yb 3+ :YAG slabs by a combination of helium cryogenic cooling and properly designed (doping/width) cladding materials.

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Design of high-energy-class cryogenically cooled Yb3+∶YAG multislab laser system with low wavefront distortion

Cited by 20 publications

References 9 publications

Design of deformable mirrors for high power lasers

Design of deformable mirrors for high power lasers

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

Design of a kJ-class HiLASE laser as a driver for inertial fusion energy

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