kHz, mJ Level Tunable MgO∶PPLN Mid‐Infrared Optical Parametric Oscillator

Shuai Liu; Kai Chen; Yue Sun; Chao Yan; Hongzhan Qiao; Jiying Chang; Jining Li; Yuye Wang; Kai Zhong; Degang Xu; Jianquan Yao

doi:10.3788/CJL231167

Chinese Journal of Lasers, Volume. 51, Issue 7, 0701019(2024)

kHz, mJ Level Tunable MgO∶PPLN Mid‐Infrared Optical Parametric Oscillator

Shuai Liu^1,2,3, Kai Chen^1,2,3, Yue Sun^1,2,3, Chao Yan^1,2,3, Hongzhan Qiao^1,2,3, Jiying Chang^1,2,3, Jining Li^1,2,3, Yuye Wang^1,2,3, Kai Zhong^1,2,3, Degang Xu^1,2,3、*, and Jianquan Yao^1,2,3

Author Affiliations

¹College of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China

²Key Laboratory of Optoelectronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China

³Key Laboratory of Micro Opto-electro Mechanical System Technology, Tianjin University, Ministry of Education, Tianjin 300072, China

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Figures & Tables(9)

Fig. 1. Schematic of OPO based on MgO∶PPLN

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Fig. 2. Tuning characteristics of OPO. (a) Spectra of signal light; (b) tuning wavelength range of idler light

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Fig. 3. Conversion efficiency versus N

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Fig. 4. Output powers of idler light. (a) Output powers of idler light for different cavity types; (b) output characteristic of 4.08 μm idler light

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Fig. 5. Time-domain characteristics of idler light. (a) Time-domain sequence of idler light; (b) pulse waveform of idler light

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Fig. 6. Output powers at different wavelengths

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Fig. 7. Spot distributions. (a) Spot distribution of pump light; (b) spot distribution of idler light

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Fig. 8. Fluctuation of laser output power

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Table 1. Parameter values in Sellmeier equation
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Table 1. Parameter values in Sellmeier equation
Parameter Value Parameter Value
$a_{1}$ 5.756 $a_{6}$ 0.0132
$a_{2}$ 0.0983 $b_{1}$ $2.86 \times 10^{- 6}$
$a_{3}$ 0.202 $b_{2}$ $4.7 \times 10^{- 8}$
$a_{4}$ 189.32 $b_{3}$ $6.113 \times 10^{- 8}$
$a_{5}$ 12.52 $b_{4}$ $1.516 \times 10^{- 4}$

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Shuai Liu, Kai Chen, Yue Sun, Chao Yan, Hongzhan Qiao, Jiying Chang, Jining Li, Yuye Wang, Kai Zhong, Degang Xu, Jianquan Yao. kHz, mJ Level Tunable MgO∶PPLN Mid‐Infrared Optical Parametric Oscillator[J]. Chinese Journal of Lasers, 2024, 51(7): 0701019

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