30-mJ, diode-pumped, chirped-pulse Yb:YLF regenerative amplifier.

Opt Lett

Advanced Photon Research Center, Japan Atomic Energy Research Institute, 8-1 Umemidai, Kizu-cho, Soraku-gun, Kyoto 619-0215, Japan.

Published: November 2003

AI Article Synopsis

  • A diode-pumped chirped-pulse regenerative amplifier utilizing a cooled Yb:YLF crystal has been created, achieving an output pulse energy of 30 mJ at a 20-Hz repetition rate.
  • The system exhibits a high effective extraction efficiency of 68%, thanks to lower saturation fluence at cooler temperatures and enhanced pulse energy during the regenerative process.
  • After using a parallel grating pair for pulse compression, the system produces a pulse energy of 18 mJ with a pulse duration of 795 fs.

Article Abstract

A diode-pumped chirped-pulse regenerative amplifier with a cooled Yb:YLF crystal has been developed. The output pulse energy is 30 mJ at 20-Hz repetition rate. A high effective extraction efficiency of 68% is obtained, which is attributed to reduced saturation fluence at low temperature and to a high effective pulse energy fluence during regenerative amplification. After pulse compression by use of a parallel grating pair, 18-mJ pulse energy and 795-fs pulse duration are obtained.

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http://dx.doi.org/10.1364/ol.28.002121DOI Listing

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