[22a-C206-1~11] 3.5 Ultrashort-pulse and high-intensity lasers (formerly 3.6)

[22a-C206-1] Mode-locked Tm³⁺:Lu₂O₃/Yb³⁺:Sc₂O₃ laser for observation of two photon stimulated emission

〇Ryohei Mitsui^1,2, Anna Suzuki^1,2, Christian Krankel³, Masaki Tokurakawa^1,2 (1.UEC,ILS, 2.UEC,CNBE, 3.Leibniz-IKZ)

Keywords:mode-locked laser, Kerr-lens mode-locked laser, nonlinear optical effect

We present a Kerr-lens mode-locked Tm³⁺:Lu₂O₃/Yb³⁺:Sc₂O₃ laser for observation of the two-photon stimulated emission. We used a Tm³⁺:Lu₂O₃ and a Yb³⁺:Sc₂O₃ simultaneously in the same cavity. The Tm³⁺:Lu₂O₃ serves as a general gain medium for 2 mm laser emission, and we expected the Yb³⁺:Sc₂O₃ could contribute to the amplification of 2 mm emission by two-photon stimulated emission. However, no amplification by two-photon process have been observed in the current configuration.
In my talk, I will give an introduction of the concept of this study and show the experimental results of the Kerr-lens mode-locked laser.