Temperature tuning of BaGa4Se7 optical parametric oscillator

Hui Kong; Jintian Bian; Jiyong Yao; Qing Ye; Xiaoquan Sun

doi:10.3788/COL202119.021901

Journals >Chinese Optics Letters >Volume 19 >Issue 2 >Page 021901 > Article

Chinese Optics Letters
Vol. 19, Issue 2, 021901 (2021)

Temperature tuning of BaGa4Se7 optical parametric oscillator

Hui Kong^1、2, Jintian Bian^1、2、*, Jiyong Yao³, Qing Ye^1、2, and Xiaoquan Sun^1、2、**

Author Affiliations

¹State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China

²Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China

³Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China

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DOI: 10.3788/COL202119.021901 Cite this Article Set citation alerts

Hui Kong, Jintian Bian, Jiyong Yao, Qing Ye, Xiaoquan Sun. Temperature tuning of BaGa4Se7 optical parametric oscillator[J]. Chinese Optics Letters, 2021, 19(2): 021901 Copy Citation Text

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Abstract

The temperature tuning of

{BaGa}_{4} {Se}_{7}

(BGSe) was demonstrated for the first time, to the best of our knowledge. When the temperature of BGSe (56.3°,0°) was raised from 30°C to 140°C, the idler light under type I raised from 3637 nm to 3989 nm, the tunable range reached 352 nm, and

Δ λ_{2} / Δ T

reached 3.20 nm/°C. We calculated the phase matching curve of BGSe when

?

and

T

took different values. The relationship between

θ

and

Δ λ_{2} / Δ T

was obtained by fixing

?

at 0°. The maximum

Δ λ_{2} / Δ T

and its corresponding (

θ, ?

) phase matching type were reported under different fixed

λ_{2} (3 μm, 3.2 μm, \dots, 5 μm)

Keywords

BaGa4Se7 optical parametric oscillator temperature tuning

{\begin{matrix} n_{x}^{2} = 6.72431 + \frac{0.26375}{λ^{2} - 0.04248} + \frac{602.97}{λ^{2} - 749.87} \\ n_{y}^{2} = 6.86603 + \frac{0.26816}{λ^{2} - 0.04259} + \frac{682.97}{λ^{2} - 781.78} \\ n_{z}^{2} = 7.16709 + \frac{0.32681}{λ^{2} - 0.06973} + \frac{731.86}{λ^{2} - 790.16} \end{matrix} .

(1)

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\frac{1}{λ_{3}} = \frac{1}{λ_{1}} + \frac{1}{λ_{2}}, \frac{n_{e_{2}}^{λ_{3}}}{λ_{3}} = \frac{n_{e_{1}}^{λ_{1}}}{λ_{1}} + \frac{n_{e_{1}}^{λ_{2}}}{λ_{2}} (I), or \frac{n_{e_{2}}^{λ_{3}}}{λ_{3}} = \frac{n_{e_{2}}^{λ_{1}}}{λ_{1}} + \frac{n_{e_{1}}^{λ_{2}}}{λ_{2}} (II ‐ A), or

(2)

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\frac{n_{e_{2}}^{λ_{3}}}{λ_{3}} = \frac{n_{e_{1}}^{λ_{1}}}{λ_{1}} + \frac{n_{e_{2}}^{λ_{2}}}{λ_{2}} (II ‐ B),

(3)

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{\begin{matrix} \frac{{d n}_{x}}{d T} = (\frac{6.0868}{λ^{3}} - \frac{12.6368}{λ^{2}} + \frac{10.5624}{λ} + 1.9583) \times 10^{- 5} (° C^{- 1}) \\ \frac{{d n}_{y}}{d T} = (\frac{6.3935}{λ^{3}} - \frac{13.1762}{λ^{2}} + \frac{10.8950}{λ} + 2.4079) \times 10^{- 5} (° C^{- 1}) \\ \frac{{d n}_{z}}{d T} = (\frac{6.3141}{λ^{3}} - \frac{13.0790}{λ^{2}} + \frac{10.8486}{λ} + 2.0758) \times 10^{- 5} (° C^{- 1}) \end{matrix},

(4)

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n_{i} (T) = n_{i} + \frac{{d n}_{i}}{d T} (T - T_{0}),

(5)

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Hui Kong, Jintian Bian, Jiyong Yao, Qing Ye, Xiaoquan Sun. Temperature tuning of BaGa4Se7 optical parametric oscillator[J]. Chinese Optics Letters, 2021, 19(2): 021901

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