• High Power Laser Science and Engineering
  • Vol. 10, Issue 3, 03000e19 (2022)
E. J. Harvey*
Author Affiliations
  • AWE, Aldermaston, Reading, RG7 4PR, UK
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    DOI: 10.1017/hpl.2022.7 Cite this Article
    E. J. Harvey. A route to enhanced performance for the petawatt beamlines of the Orion laser facility[J]. High Power Laser Science and Engineering, 2022, 10(3): 03000e19 Copy Citation Text show less

    Abstract

    The Orion laser facility at AWE provides multiple beams to target delivering synchronized pulses at both nanosecond and sub-picosecond duration. In the latter, the peak power approaches the petawatt level. This paper presents a conceptual design for potential development of these beamlines. This would deliver a significant enhancement of performance at the fundamental level. In addition, a new approach is described for the management of frequency conversion at high intensity, which may allow significantly enhanced performance at the second harmonic also.

    1 Introduction

    Orion[1], a high-power Nd:glass laser facility, commenced user experiments in 2013[2]. It provides ten beamlines with 0.1–10 ns pulse duration (‘long pulse’), each with a specification of 500 J in 1 ns at 351 nm and two beamlines each with a specification of 500 J in 500 fs (‘short pulse’) at 1054 nm. To obtain increased temporal contrast, one of the latter beamlines may be frequency doubled. With the original capability[3] enhanced recently, up to 210 J in 500 fs is available at 527 nm[4]. For a programme of experiments at high energy density, laser pulses are delivered to a small target, positioned and synchronized to high accuracy.

    Copy Citation Text
    E. J. Harvey. A route to enhanced performance for the petawatt beamlines of the Orion laser facility[J]. High Power Laser Science and Engineering, 2022, 10(3): 03000e19
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