Temperature Tuning of BaGa4Se7 Optical Parametric Oscillator [Early Posting]
The temperature tuning of BGSe was demonstrated for the first time. When the temperature of BGSe (56.3°，0°) rised from 30℃ to 140℃, the idle light under type I raised from 3637 nm to 3989 nm, the tunable range reached 352 nm, and the ∆λ_2/ΔT reached 3.20 nm/℃. We calculated the phase matching curve of BGSe when ∅ and T take different values. The relationship between θ and ∆λ_2/ΔT was obtained by fixing ∅ at 0°. The maximum ∆λ_2/ΔT and its corresponding (θ, ∅), phase matching type were reported under different fixed λ_2 (3μm,3.2μm,…5μm).
作者单位：National University of Defense Technology
Kong Hui,Bian Tian,Yao Jiyong,Ye Qing,Sun Xiaoquan. Temperature Tuning of BaGa4Se7 Optical Parametric Oscillator[J].Chinese Optics Letters,2021,19(2):02.