Injection laser system for Advanced Radiographic Capability using chirped pulse amplification on the National Ignition Facility.

We report on the design, performance, and qualification of the injection laser system designed to deliver joule-level chirped pulse beamlets arranged in dual rectangular beam formats into two main laser amplifier beamlines of the National Ignition Facility. The system is designed to meet the requirements of the Advanced Radiographic Capability upgrade with features that deliver performance, adjustability, and long-term reliability.

[1]  Yuxin Leng,et al.  Generation of high-contrast, joule-level pulses based on Nd:glass chirped pulse amplification laser , 2016, High Power Laser Science and Engineering.

[2]  J.W. Dawson,et al.  High-Energy, Short-Pulse Fiber Injection Lasers at Lawrence Livermore National Laboratory , 2009, IEEE Journal of Selected Topics in Quantum Electronics.

[3]  F Louradour,et al.  Compact direct space-to-time pulse shaping with a phase-only spatial light modulator. , 2011, Optics letters.

[4]  Jonathan D. Zuegel,et al.  OPCPA front end and contrast optimization for the OMEGA EP kilojoule, picosecond laser , 2015 .

[5]  K R Wilson,et al.  Generation of 18-fs, multiterawatt pulses by regenerative pulse shaping and chirped-pulse amplification. , 1996, Optics letters.

[6]  J P Heritage,et al.  Picosecond pulse shaping by spectral phase and amplitude manipulation. , 1985, Optics letters.

[7]  Jake Bromage,et al.  Impact of high-frequency spectral phase modulation on the temporal profile of short optical pulses. , 2008, Optics express.

[8]  Justin Wolfe,et al.  A programmable beam shaping system for tailoring the profile of high fluence laser beams , 2010, Laser Damage.

[9]  Gerard Mourou,et al.  Compression of amplified chirped optical pulses , 1985 .

[10]  B. McHale,et al.  Progress on converting a NIF quad to eight, petawatt beams for advanced radiography , 2010 .

[11]  P. J. Wegner,et al.  The commissioning of the advanced radiographic capability laser system: experimental and modeling results at the main laser output , 2015, Photonics West - Lasers and Applications in Science and Engineering.

[12]  James P. Gordon,et al.  Negative group-velocity dispersion using refraction , 1984 .

[13]  R J Beach.  Theory and optimization of lens ducts. , 1996, Applied optics.

[14]  L. J. Atherton,et al.  Overview: Development of the National Ignition Facility and the Transition to a User Facility for the Ignition Campaign and High Energy Density Scientific Research , 2016 .

[15]  V P Karpenko,et al.  Serrated-aperture apodizers for high-energy laser systems. , 1994, Applied optics.

[16]  D. Kane,et al.  Single-shot measurement of the intensity and phase of an arbitrary ultrashort pulse by using frequency-resolved optical gating. , 1993, Optics letters.

[17]  S Yu Tenyakov,et al.  Contrast degradation in a chirped-pulse amplifier due to generation of prepulses by postpulses. , 2008, Optics express.

[18]  John A. Caird,et al.  An overview of LLNL high-energy short-pulse technology for advanced radiography of laser fusion experiments , 2004 .

[19]  Ferenc Krausz,et al.  Ultra-broadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation , 2010 .

[20]  R. Lowe-Webb,et al.  First demonstration of ARC-accelerated proton beams at the National Ignition Facility , 2018, Physics of Plasmas.

[21]  Stephen Elsmere,et al.  Contrast enhancements to petawatt lasers using short pulse optical parametric amplifiers and frequency doubling. , 2014, Applied optics.

[22]  Jay W. Dawson,et al.  Performance measurements of the injection laser system configured for picosecond scale advanced radiographic capability , 2010 .

[23]  Joshua E. Rothenberg,et al.  Issue of FM to AM conversion on the National Ignition Facility , 1998, Other Conferences.

[24]  K. R. Manes,et al.  Description of the NIF Laser , 2016 .

[25]  D. K. Bradley,et al.  Short pulse, high resolution, backlighters for point projection high-energy radiography at the National Ignition Facility , 2017 .

[26]  Jens Limpert,et al.  Decrease of pulse-contrast in nonlinear chirped-pulse amplification systems due to high-frequency spectral phase ripples. , 2008, Optics express.

[27]  Ferenc Krausz,et al.  Ultra-high-contrast few-cycle pulses for multipetawatt-class laser technology. , 2011, Optics letters.

[28]  J. Hein,et al.  Temporal contrast control at the PHELIX petawatt laser facility by means of tunable sub-picosecond optical parametric amplification , 2014 .

[29]  B. Stuart,et al.  Self-phase modulation in chirped-pulse amplification. , 1994, Optics letters.

[30]  Jens Limpert,et al.  The impact of spectral modulations on the contrast of pulses of nonlinear chirped-pulse amplification systems. , 2008, Optics express.

[31]  Mark Bowers,et al.  The injection laser system on the National Ignition Facility , 2007, SPIE LASE.

[32]  C. Dorrer,et al.  High-contrast optical-parametric amplifier as a front end of high-power laser systems. , 2007, Optics letters.

[33]  Joachim Hein,et al.  The generation of amplified spontaneous emission in high‐power CPA laser systems , 2015, Laser & photonics reviews.

[34]  V. J. Hernandez,et al.  High-energy (>70 keV) x-ray conversion efficiency measurement on the ARC laser at the National Ignition Facility , 2017 .

[35]  John E. Heebner,et al.  Pulse contrast measurement on the NIF Advanced Radiographic Capability (ARC) laser system , 2017, LASE.

[36]  D J Schlossberg,et al.  Ab initio response functions for Cherenkov-based neutron detectors. , 2018, The Review of scientific instruments.

[37]  E. Treacy.  Optical pulse compression with diffraction gratings , 1969 .

[38]  Tsutomu Shimada,et al.  High-temporal contrast using low-gain optical parametric amplification. , 2009, Optics letters.

[39]  Cristina Hernandez-Gomez,et al.  Picosecond optical parametric chirped pulse amplifier as a preamplifier to generate high-energy seed pulses for contrast enhancement. , 2010, Applied optics.

[40]  D Umstadter,et al.  Nonlinear temporal diffraction and frequency shifts resulting from pulse shaping in chirped-pulse amplification systems. , 1995, Optics letters.