Diode-pumped 640 nm Pr:YLF regenerative laser pulse amplifier

Naoto Sugiyama, Shogo Fujita, Yusaku Hara, Hiroki Tanaka, Fumihiko Kannari

Research output: Contribution to journalArticle

Abstract

We demonstrated regenerative laser pulse amplification at 640 nm for the first time, to the best of our knowledge, with a mode-locked Pr3-doped LiYF4 (Pr3:YLF) oscillator as a picosecond seed pulse. A regenerative amplifier with a Pr3:YLF crystal was continuously pumped by a multi-mode InGaN diode laser. At an absorbed pump power of 3.1 W, we obtained amplified pulse energy of 13 μJ at 10 kHz with an excellent spatial beam quality of M 2∼1.1, demonstrated second-harmonic generation, and obtained a 320 nm pulse energy of 5.9 μJ.

Original languageEnglish
Pages (from-to)3370-3373
Number of pages4
JournalOptics Letters
Volume44
Issue number13
DOIs
Publication statusPublished - 2019 Jan 1

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amplifiers
diodes
pulses
lasers
seeds
harmonic generations
semiconductor lasers
oscillators
pumps
energy
crystals

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Diode-pumped 640 nm Pr:YLF regenerative laser pulse amplifier. / Sugiyama, Naoto; Fujita, Shogo; Hara, Yusaku; Tanaka, Hiroki; Kannari, Fumihiko.

In: Optics Letters, Vol. 44, No. 13, 01.01.2019, p. 3370-3373.

Research output: Contribution to journalArticle

Sugiyama, N, Fujita, S, Hara, Y, Tanaka, H & Kannari, F 2019, 'Diode-pumped 640 nm Pr:YLF regenerative laser pulse amplifier', Optics Letters, vol. 44, no. 13, pp. 3370-3373. https://doi.org/10.1364/OL.44.003370
Sugiyama, Naoto ; Fujita, Shogo ; Hara, Yusaku ; Tanaka, Hiroki ; Kannari, Fumihiko. / Diode-pumped 640 nm Pr:YLF regenerative laser pulse amplifier. In: Optics Letters. 2019 ; Vol. 44, No. 13. pp. 3370-3373.
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