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

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

doi:10.1364/OL.44.003370

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

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

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

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 language	English
Pages (from-to)	3370-3373
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	13
DOIs	https://doi.org/10.1364/OL.44.003370
Publication status	Published - 2019 Jan 1

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Diode-pumped 640 nm Pr:YLF regenerative laser pulse amplifier",

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.",

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AU - Sugiyama, Naoto

AU - Fujita, Shogo

AU - Hara, Yusaku

AU - Tanaka, Hiroki

AU - Kannari, Fumihiko

PY - 2019/1/1

Y1 - 2019/1/1

N2 - 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.

AB - 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.

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

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