Yu Fu, Fei Liang, Dazhi Lu, Haohai Yu, Huaijin Zhang. Multiphonon-assisted continuous-wave tunable vibronic laser in Yb:LuScO3 crystal[J]. Chinese Optics Letters, 2023, 21(9): 091402
- Chinese Optics Letters
- Vol. 21, Issue 9, 091402 (2023)
Fig. 1. (a) Fluorescence spectrum of a Yb:LuScO3 crystal; crystal thickness is 1 mm. (b) The calculated fluorescence line shape F for multiphonon-assisted transitions; n represents the phonon number.
Fig. 2. Experimental setup of the tunable laser beyond 1.1 µm on Yb:LuScO3 crystal.
Fig. 3. (a) Wavelength tuning curve for the Yb:LuScO3 crystal at the incident pump power of 5.1 W. The tunable spectrum is discontinuous. (b) Tunable laser spectra in the range of 1121–1136 nm. The bandwidth is narrow below 0.1 nm, which is consistent with the CW laser operation.
Fig. 4. Raman spectra of Yb3+-doped Lu2O3, LuScO3, and Sc2O3 crystals. Two main Raman peaks of Yb:LuScO3 crystal are 405 cm-1 (Ag mode) and 472 cm-1 (Eg mode).
Fig. 5. (a) Experimental setup of the CW laser at 1131 nm; (b) characterizations of laser in the Yb:LuScO3 crystal; output power as a function of absorbed pump power; inset, CW laser spectra of Yb:LuScO3 with Toc = 0.1%.
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