This paper introduces a high single-pulse energy,narrow-linewidth mid-infrared self-optical parametric oscillator(midIR SOPO)with a cavity length of 120 mm and a Nd:Mg O:PPLN crystal.To achieve high single-pulse energ...This paper introduces a high single-pulse energy,narrow-linewidth mid-infrared self-optical parametric oscillator(midIR SOPO)with a cavity length of 120 mm and a Nd:Mg O:PPLN crystal.To achieve high single-pulse energy and high peak power in mid-IR light sources,a LiNbO3 electro-optic Q-switch(EOQ)is introduced for the first time in a midIR SOPO.A narrow-linewidth EOQ-SOPO rate equation is formulated,and experiments are conducted using a single Fabry–Pérot etalon.At a 500μs pump pulse width,a 4.71 m J single-pulse idler light at 3838.2 nm is achieved,with a linewidth of 0.412 nm,single-pulse width of 4.78 ns and peak power of 985 k W.At 200μs,the idler light at 3845.2 nm exhibits a minimum linewidth of 0.212 nm.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.62275031 and U24A2045)the Natural Science Foundation of Jilin Province(Grant No.20240302023GX)。
文摘This paper introduces a high single-pulse energy,narrow-linewidth mid-infrared self-optical parametric oscillator(midIR SOPO)with a cavity length of 120 mm and a Nd:Mg O:PPLN crystal.To achieve high single-pulse energy and high peak power in mid-IR light sources,a LiNbO3 electro-optic Q-switch(EOQ)is introduced for the first time in a midIR SOPO.A narrow-linewidth EOQ-SOPO rate equation is formulated,and experiments are conducted using a single Fabry–Pérot etalon.At a 500μs pump pulse width,a 4.71 m J single-pulse idler light at 3838.2 nm is achieved,with a linewidth of 0.412 nm,single-pulse width of 4.78 ns and peak power of 985 k W.At 200μs,the idler light at 3845.2 nm exhibits a minimum linewidth of 0.212 nm.
