Enhanced Yb:YAG Active Mirrors for High Power Laser Amplifiers

The work is aimed at the investigation of the influence of nonlinear active ions concentration profiles in Yb:YAG laser elements on temperature distribution and wavefront distortions during amplification using sub-kilowatt level diode pumping. A mathematical model is presented for the theoretical study of the amplification process in crystals with cubic crystal system. A detailed comparison of Yb:YAG active elements with the same thickness and absorbed pumping power, but with various concentration profiles of Yb3+, ions is carried out. It is shown that the use of active elements with an increasing dopant concentration in the pump beam direction allows one to optimize the temperature profile inside the active element and, thus, reduce the thermal-induced wavefront distortions of the amplified radiation. Modeling is carried out for the experimentally grown crystal with linear concentration gradient profile. It is shown that the linear doping profile with a gradient of 0.65 at.%/mm allows increasing the small-signal gain up to 10% and decreasing the thermal-induced wavefront distortions by ~15%.

[1]  I. Laryushin,et al.  Dynamics of Gas Ionization by Laser Pulses with Different Envelope Shapes , 2023, Photonics.

[2]  T. Mocek,et al.  Cryogenic laser operation of a “mixed” Yb:LuYAG garnet crystal , 2023, Applied Physics B.

[3]  Qiong Zhou,et al.  Influence of Large-Aperture Output Wavefront Distribution on Focal Spot in High-Power Laser Facility , 2023, Photonics.

[4]  A. Kareiva,et al.  Sol-Gel Synthesis and Characterization of Novel Y3−xMxAl5−yVyO12 (M—Na, K) Garnet-Type Compounds , 2023, Inorganics.

[5]  M. Korzhik,et al.  Micro-Nonuniformity of the Luminescence Parameters in Compositionally Disordered GYAGG:Ce Ceramics , 2023, Photonics.

[6]  Zhuguo Li,et al.  High-power diode-end-pumped 1314 nm laser based on the multi-segmented Nd:YLF crystal. , 2023, Optics letters.

[7]  F. Kärtner,et al.  One-joule 500-Hz cryogenic Yb:YAG laser driver of composite thin-disk design. , 2022, Optics letters.

[8]  T. Kurita,et al.  253 J at 0.2 Hz, LD pumped cryogenic helium gas cooled Yb:YAG ceramics laser. , 2022, Optics express.

[9]  G. V. Kuptsov,et al.  Laser Method for Studying Temperature Distribution within Yb:YAG Active Elements , 2022, Photonics.

[10]  F. Rachidi,et al.  Laser-guided lightning , 2022, Nature Photonics.

[11]  E. Goulielmakis,et al.  High harmonic generation in condensed matter , 2022, Nature Photonics.

[12]  H. Yoshida,et al.  A 10-J, 100-Hz conduction-cooled active-mirror laser , 2022, Optics Continuum.

[13]  Z. Fan,et al.  Recent Development of High-Energy Short-Pulse Lasers with Cryogenically Cooled Yb:YAG , 2022, Applied Sciences.

[14]  N. Al-Hosiny,et al.  Mitigation of Thermal Effects in End Pumping of Nd:YAG and Composite YAG/Nd:YAG Laser Crystals, Modelling and Experiments , 2021, Technical Physics.

[15]  J. Rocca,et al.  Wake dynamics of air filaments generated by high-energy picosecond laser pulses at 1 kHz repetition rate. , 2021, Optics letters.

[16]  Qing-li Zhang,et al.  High-peak-power electro-optically Q-switched laser with a gradient-doped Nd:YAG crystal. , 2021, Optics letters.

[17]  S. Wilks,et al.  Accelerating the rate of discovery: toward high-repetition-rate HED science , 2021 .

[18]  J. W. Yoon,et al.  Multi-GeV Laser Wakefield Electron Acceleration with PW Lasers , 2021, Applied Sciences.

[19]  Qing-li Zhang,et al.  Superior performance of a 2  kHz pulse Nd:YAG laser based on a gradient-doped crystal , 2021, Photonics Research.

[20]  C. Menoni,et al.  1.1 J Yb:YAG Picosecond Laser at 1 kHz Repetition Rate , 2020, 2021 Conference on Lasers and Electro-Optics (CLEO).

[21]  Robert Bessing,et al.  Ultrafast thin-disk multipass amplifier with 720 mJ operating at kilohertz repetition rate for applications in atmospheric research. , 2020, Optics express.

[22]  A. Chew,et al.  Attosecond science based on high harmonic generation from gases and solids , 2020, Nature Communications.

[23]  Jian-Wei Pan,et al.  11-watt single-frequency 1342-nm laser based on multi-segmented Nd:YVO4 crystal. , 2019, Optics express.

[24]  G. V. Kuptsov,et al.  Optimisation of a multi-disk cryogenic amplifier for a high-intensity, high-repetition-rate laser system , 2018 .

[25]  J. Hein,et al.  Spatio‐Temporal Characterization of Pump‐Induced Wavefront Aberrations in Yb3 + ‐Doped Materials , 2018 .

[26]  Y. M. Mandrik,et al.  Synthesis of Y3Al5O12:Ce3+ phosphor in the Y2O3–Al metal–CeO2 ternary system , 2017, Journal of Materials Science.

[27]  Peng Liu,et al.  A 7.08-kW YAG/Nd:YAG/YAG Composite Ceramic Slab Laser with Dual Concentration Doping , 2017, IEEE Photonics Journal.

[28]  Ferenc Krausz,et al.  1  kW, 200  mJ picosecond thin-disk laser system. , 2017, Optics letters.

[29]  Zhaohui Huang,et al.  Structure evolution and photoluminescence of Lu3(Al,Mg)2(Al,Si)3O12:Ce3+ phosphors: new yellow-color converters for blue LED-driven solid state lighting , 2016 .

[30]  Antonio Lapucci,et al.  Laser and optical properties of Yb:YAG ceramics with layered doping distribution: design, characterization and evaluation of different production processes , 2016, SPIE LASE.

[31]  H. Zeng,et al.  Mode-Locked Composite YAG/Yb:YAG Ceramic Laser and High-Power Amplification , 2016, IEEE Photonics Technology Letters.

[32]  V. Atuchin,et al.  Pressure-Stimulated Synthesis and Luminescence Properties of Microcrystalline (Lu,Y)₃Al₅O₁₂:Ce³⁺ Garnet Phosphors. , 2015, ACS applied materials & interfaces.

[33]  P. J. Phillips,et al.  Scalable design for a high energy cryogenic gas cooled diode pumped laser amplifier , 2015 .

[34]  C Bollig,et al.  High average power Q-switched 1314-nm two-crystal Nd:YLF laser. , 2015, Optics letters.

[35]  P. Bakopoulos,et al.  Actively Q-Switched Multisegmented Nd:YAG Laser Pumped at 885 nm for Remote Sensing , 2014, IEEE Photonics Technology Letters.

[36]  V. A. Vasiliev,et al.  High-intensity femtosecond laser systems based on coherent combining of optical fields , 2013 .

[37]  Y. Chen,et al.  High-power diode-end-pumped laser with multi-segmented Nd-doped yttrium vanadate. , 2013, Optics express.

[38]  O. Antipov,et al.  Electronic and thermal lensing in diode end-pumped Yb:YAG laser rods and discs , 2009 .

[39]  V. Galutskiy,et al.  Growth of single crystal with a gradient of concentration of impurities by the Czochralski method using additional liquid charging , 2009 .

[40]  Dietmar Kracht,et al.  End-pumped Nd:YAG laser with a longitudinal hyperbolic dopant concentration profile. , 2008, Optics express.

[41]  Dietmar Kracht,et al.  407 W End-pumped Multi-segmented Nd:YAG Laser. , 2005, Optics express.

[42]  T. Y. Fan,et al.  Measurement of thermo-optic properties of Y3Al5O12, Lu3Al5O12, YAIO3, LiYF4, LiLuF4, BaY2F8, KGd(WO4)2, and KY(WO4)2 laser crystals in the 80–300K temperature range , 2005 .

[43]  Fuxi Gan,et al.  Dependence of the Yb 3+ emission cross section and lifetime on temperature and concentration in yttrium aluminum garnet , 2003 .

[44]  G. V. Kuptsov,et al.  Laser amplification in an Yb : YAG active mirror with a significant temperature gradient , 2021 .

[45]  Jean-Christophe Chanteloup,et al.  Yb 3+ :YAG crystal growth with controlled doping distribution , 2012 .