Transition-metal-doped saturable absorbers for passive Q-switching of visible lasers

Hiroki Tanaka; Christian Kränkel; Fumihiko Kannari

doi:10.1364/OME.395893

Transition-metal-doped saturable absorbers for passive Q-switching of visible lasers

Hiroki Tanaka, Christian Kränkel, Fumihiko Kannari

Department of Electronics and Electrical Engineering

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

9 Citations (Scopus)

Abstract

We experimentally investigate crystals doped with tetravalent chromium or divalent cobalt as saturable absorbers for passive Q-switching of visible solid-state lasers. The recovery time of the ground-state and excited-state absorption cross sections are determined by pump-probe and Z-scan measurements, respectively. We provide saturation intensities, useful wavelength ranges of the investigated materials, and advices to realize passive Q-switching of visible lasers using these crystals as saturable absorbers.

Original language	English
Pages (from-to)	1827-1842
Number of pages	16
Journal	Optical Materials Express
Volume	10
Issue number	8
DOIs	https://doi.org/10.1364/OME.395893
Publication status	Published - 2020 Aug 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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abstract = "We experimentally investigate crystals doped with tetravalent chromium or divalent cobalt as saturable absorbers for passive Q-switching of visible solid-state lasers. The recovery time of the ground-state and excited-state absorption cross sections are determined by pump-probe and Z-scan measurements, respectively. We provide saturation intensities, useful wavelength ranges of the investigated materials, and advices to realize passive Q-switching of visible lasers using these crystals as saturable absorbers.",

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AU - Kannari, Fumihiko

N1 - Funding Information: Ministry of Education, Culture, Sports, Science and Technology; Bundesministerium für Bildung und Forschung (13N14192). Publisher Copyright: © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

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N2 - We experimentally investigate crystals doped with tetravalent chromium or divalent cobalt as saturable absorbers for passive Q-switching of visible solid-state lasers. The recovery time of the ground-state and excited-state absorption cross sections are determined by pump-probe and Z-scan measurements, respectively. We provide saturation intensities, useful wavelength ranges of the investigated materials, and advices to realize passive Q-switching of visible lasers using these crystals as saturable absorbers.

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Transition-metal-doped saturable absorbers for passive Q-switching of visible lasers

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