[22a-A402-1~9] 3.4 Laser system and materials (formerly 3.5)

[22a-A402-7] Czochralski-growth and characterization of Tm³⁺-doped mixed sesquioxide crystal

〇Anna Suzuki^1,2,3, Sascha Kalusniak³, Hiroki Tanaka³, Mario Bruetzam³, Steffen Ganschow³, Masaki Tokurakawa^1,2, Christian Kraenkel³ (1.ILS, UEC, 2.CNBE, UEC, 3.IKZ)

Keywords:Tm laser, Crystal growth, Laser crystal

We present spectroscopic investigations and laser operation of a Czochralski-grown Tm³⁺:YScO₃ mixed sesquioxide crystal. Tm³⁺-doped mixed sesquioxide shows a broad and flat gain spectrum, and their reduced melting temperature enabeles high-quality crystal growth by the Czochralski method from Iridium crucibles. They are promising candidates as commercially avairable gain material for 2 µm ultrafast lasers.