Simultaneously 3-Point Ignitable, Nd:YAG/Cr:YAG Ceramic Micro-Lasers

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  • TSUNEKANE Masaki
    1National Institutes of Natural Sciences, Institute for Molecular Science, Laser Research Center for Molecular Science
  • PAVEL Nicolaie
    1National Institutes of Natural Sciences, Institute for Molecular Science, Laser Research Center for Molecular Science National Institute for Lasers, Plasma and Radiation Physics Laboratory of Solid-State Quantum Electronics
  • TAIRA Takunori
    1National Institutes of Natural Sciences, Institute for Molecular Science, Laser Research Center for Molecular Science

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Other Title
  • エンジン同時3点点火用高輝度Nd:YAG/Cr:YAG セラミックマイクロレーザー
  • Laser Original エンジン同時3点点火用高輝度Nd:YAG/Cr:YAGセラミックマイクロレーザー
  • Laser Original エンジン ドウジ 3テン テンカヨウ コウキド Nd:YAG/Cr:YAG セラミックマイクロレーザー

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Abstract

An actual spark plug-sized laser with ignitable, three beam output was successfully demonstrated for simultaneous multi-point ignition of automobile engines. The closed parallel laser array consisted of a single active source of a composite, 10-mm long all-ceramics Nd:YAG/Cr:YAG monolithic laser cavity and three independent pump and focus optics lines. Laser pulses with energy of 3.2 mJ and a duration of 500 ps (> 6 MW peak power) were obtained from each laser at 20-Hz repetitions.

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