Work

Pulse-burst passively Q-switched lasing in Yb-doped fluorapatite ceramics

Year: 2026

Type: article

Abstract: We investigated the laser performance of ytterbium-doped non-cubic fluorapatite (Ca 10 (PO 4 ) 6 F 2 : FAP) ceramics composed of randomly oriented grains approximately 100 nm in size. Laser operation was evaluated under quasi-continuous-wave (QCW) operation, and a slope efficiency of 20% was achieved even in ceramics with randomly oriented crystal grains. Passively Q-switched pulse-burst operation was also examined using a Cr 4+ :YAG saturable absorber, yielding a pulse width of 1.9 ns and a maximum peak power of 2.5 kW. These results demonstrate the potential of non-cubic ceramic gain media for high-performance laser applications and support their further development for advanced laser technologies.

Source: Japanese Journal of Applied Physics

DOI: 10.35848/1347-4065/aebf40

Authors: Kazuya Takimoto, Hiroyasu Sone, Shinki NAKAMURA, Hiroaki Furuse

Institutions: National Institute for Materials Science, Kitami Institute of Technology, Ibaraki University

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funders: Japan Society for the Promotion of Science, Fusion Oriented REsearch for disruptive Science and Technology

OpenAlex ID: W7225392411

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