Development of Stable Seed Pulses for Optically Synchronized Optical Parametric Chirped-Pulse Amplifier Pumping

• MIYASAKA Yasuhiro

  Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST)

• KIRIYAMA Hiromitsu

  Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST)

• KISHIMOTO Maki

  Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST)

• MORI Michiaki

  Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST)

• KANDO Masaki

  Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST)

• KONDO Kiminori

  Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST)

Abstract

In this paper, we report the development of optically synchronized seed pulses to achieve low-jitter pump pulses for optical parametric chirped-pulse amplification in a petawatt-class laser system. The 1064 nm pulses are generated from Ti:sapphire oscillator pulses by soliton self-frequency shift in a photonic crystal fiber (PCF). The center wavelength of the PCF output spectrum is kept at 1064 nm using a newly proposed feedback control system. This is performed by rotating a half wave plate automatically by an amount that depends on the extent of center wavelength shift. The center wavelength is stable, with a fluctuation of less than 0.02% (root mean square). The stabilized pulses are amplified to 150 mW at 80 MHz by four Yb:fiber amplifiers and stretched to 1.2 ns by a fiber Bragg grating. As a preliminary result, the stretched pulses are amplified in a diode-pumped Nd:YAG regenerative amplifier to 135 mJ at 1 Hz.

Journal

• The Review of Laser Engineering

  The Review of Laser Engineering 45 (2), 108-, 2017

  The Laser Society of Japan

Keywords

• Optical parametric chirped-pulse amplification (OPCPA)
• Yb-doped fiber
• Diode-pumping
• Chirped-pulse amplification (CPA)

Details

• CRID: 1391694356244053120
• NII Article ID: 130007957349
• NII Article ID: 40021116764
• NII Book ID: AN00255326
• DOI: 10.2184/lsj.45.2_108
• ISSN: 13496603
• ISSN: 03870200
• NDL BIB ID: 028013742
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028013742
• Web Site: https://www.jstage.jst.go.jp/article/lsj/45/2/45_108/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed