Journal
IEEE JOURNAL OF QUANTUM ELECTRONICS
Volume 59, Issue 6, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JQE.2023.3315306
Keywords
Green lasers; Pr3+; LiYF4; diode-pumped; watt-level
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This paper presents the first demonstration of three new wavelengths in the sigma-polarized direction using a continuous-wave Pr3+:LiYF4 laser. The transitions mechanism is proposed based on dual upper energy levels and Stark sub-levels. The lasers achieve high output power at room temperature.
We report the first demonstration on three new wavelengths of 519 nm, 538 nm, 550 nm in the sigma-polarized direction based on continuous-wave (CW) Pr3+:LiYF4 laser. The transitions mechanism combined dual upper energy levels of 3P1 and 3P0 with Stark sub-levels of 3H5 was proposed. The CW lasers achieve output power greater than watt levels in the sigma-polarized direction at room temperature, with 1.21 W at 519 nm, 1.45 W at 538 nm, and 1.06 W at 550 nm.
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