Simulation of grating compressor misalignment tolerances and mitigation strategies for chirped-pulse–amplification systems of varying bandwidths and beam sizes

Webb, Benjamin; Guardalben, M. J.; Dorrer, C.; Bucht, S.; Bromage, J.

doi:10.1364/ao.58.000234

Cited by 15 publications

(4 citation statements)

References 16 publications

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“…In this region, the high-efficiency solutions deviate from the Littrow configuration. Obviously, small-deviation-angle solutions are connected into a narrow strip, illustrating the narrow AOI spectrum and high requirements for engineering layouts [ 37 ] . Conversely, large-deviation-angle solutions aggregate relatively large areas, implicating greater engineering feasibility.…”

Section: Design Scheme Of the Dielectric Pulse Compression Gratingmentioning

confidence: 99%

All- and mixed-dielectric grating for Nd:glass-based high-energy pulse compression

Han,

Cao,

Kong

et al. 2023

High Pow Laser Sci Eng

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Maximizing the energy-loading performance of gratings is a universal theme in high-energy pulse compression. However, sporadic grating designs strongly restrict the development of high-power laser engineering. This study proposes an all- and mixed-dielectric grating design paradigm for Nd:glass-based pulse compressors. The solution regions are classified according to the line density. High diffraction efficiency solutions are described in more detail based on the dispersion amount and incident angle. Moreover, an energy scaling factor of 7.09 times larger than that of the National Ignition Facility’s Advanced Radiographic Capability (NIF-ARC) is obtained by taking advantage of the low electric field intensity at transverse magnetic polarization and a small incident angle. These results make a pioneering contribution to facilitate future 20–50-petawatt-class ultrafast laser systems.

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Section: Design Scheme Of the Dielectric Pulse Compression Gratingmentioning

confidence: 99%

All- and mixed-dielectric grating for Nd:glass-based high-energy pulse compression

Han,

Cao,

Kong

et al. 2023

High Pow Laser Sci Eng

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“…The output pulses are compressed by a pair of multilayer dielectric (MLD) reflection gratings, arranged in a Treacy-type configuration under a near-Littrow angle of incidence [50]. The mechanical mounts for the large-size optics enable fine adjustment for tip, tilt, and in-plane rotation [51] of the gratings for optimal alignment of the compressor. A total bandwidth of 5.0 nm is supported by the compressor configuration.…”

Section: Grating Compressormentioning

confidence: 99%

Ultrafast thin-disk multipass amplifier with 720 mJ operating at kilohertz repetition rate for applications in atmospheric research

Herkommer¹,

Krötz²,

Jung³

et al. 2020

Opt. Express

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We present an ultrafast thin-disk based multipass amplifier operating at a wavelength of 1030 nm, designed for atmospheric research in the framework of the Laser Lightning Rod project. The CPA system delivers a pulse energy of 720 mJ and a pulse duration of 920 fs at a repetition rate of 1 kHz. The 240 mJ seed pulses generated by a regenerative amplifier are amplified to the final energy in a multipass amplifier via four industrial thin-disk laser heads. The beam quality factor remains ∼ 2.1 at the output. First results on horizontal long-range filament generation are presented.

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“…With the rapid development of modern technology and the increasing demand for the refinement of optical signal processing, higher requirements have been put forward for optoelectronic devices with better performance. In the field of photoelectric information, micro-nano-structured gratings are widely used in optical precision systems, such as dense wavelength division multiplexing systems [1,2] and chirped pulse amplification systems [3][4][5][6]. In addition, micro-nano gratings can also be used in vertical couplers [7,8], spatial light modulators [9] and other devices.…”

Section: Introductionmentioning

confidence: 99%

Triple-channel reflective splitter in terahertz band by second-order Littrow illumination

Liu¹,

Wang²

2023

Laser Phys.

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In this paper, a triple-channel reflective beam splitter in terahertz band with connecting layer under second Bragg incidence is presented. A rigorous coupled-wave analysis is applied to optimize the profile of the grating at 2.52 THz. The optimal parameters of the grating are also verified by using the finite element method to ensure the accuracy of the data. The impact of the incident angle, incident wavelength, duty cycle, and period is analyzed in detail. For the optimized grating working in terahertz band, results for diffraction efficiencies approaching over 30% for transverse-electric polarization in three propagating orders and for transverse-magnetic polarization in the -1st order and -2nd order are derived. Obtaining stable and superior performances, the proposed three-port beam splitter working in the terahertz band is novel and could be an inspiration to design new gratings.

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Simulation of grating compressor misalignment tolerances and mitigation strategies for chirped-pulse–amplification systems of varying bandwidths and beam sizes

Cited by 15 publications

References 16 publications

All- and mixed-dielectric grating for Nd:glass-based high-energy pulse compression

All- and mixed-dielectric grating for Nd:glass-based high-energy pulse compression

Ultrafast thin-disk multipass amplifier with 720 mJ operating at kilohertz repetition rate for applications in atmospheric research

Triple-channel reflective splitter in terahertz band by second-order Littrow illumination

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