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Journal of the Korean Physical Society

, Volume 73, Issue 11, pp 1637–1643 | Cite as

Frequency-Modulated Pulse-Amplification Method for Reducing Pulse Shape Distortion

  • Jihoon Jeong
  • Seryeyohan Cho
  • Seungjin Hwang
  • Tae Jun YuEmail author
Article
  • 13 Downloads

Abstract

To reduce the laser pulse shape distortion accompanying the amplification process and achieve an intended output pulse shape in the Nd:YAG amplifier chain, we propose a frequency-modulated pulse-amplification method. Assuming carrier-frequency-modulated seed pulses, we numerically simulate the pulse amplification in an Nd:YAG amplifier chain where severe distortion occurs. For the calculation, we develop a modified Frantz-Nodvik equation, which enables two inputs with different carrier frequencies. The simulation results indicate that the temporal contrast of the seed pulse needed to obtain a flat output pulse shape is reduced by 16 - 25 dB when frequency modulation is applied.

Keywords

Pulse shaping Pulse distortion Nd:YAG Frequency modulation 

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Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  • Jihoon Jeong
    • 1
  • Seryeyohan Cho
    • 1
  • Seungjin Hwang
    • 1
  • Tae Jun Yu
    • 1
    Email author
  1. 1.Department of Advanced Green Energy and EnvironmentHandong Global UniversityPohangKorea

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