High average power 200 fs mid-infrared KTP optical parametric oscillator tunable from 2.61 to 3.84 μm
High average power 200 fs mid-infrared KTP optical parametric oscillator tunable from 2.61 to 3.84 μm
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高平均功率 200 fs 中红外 KTP 光学参量振荡器，可调范围为 2.61 至 3.84 µm
DOI：
10.1007/s00340-021-07675-w
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Zhiyi Wei
中科院分区：
文献类型：
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作者：
Xianghao Meng;Zhaohua Wang;Wenlong Tian;Jiajun Song;Xianzhi Wang;Jiangfeng Zhu;Zhiyi Wei
我们报告了一种广泛可调的中红外飞秒 KTiOPO4.光学参量振荡器 (OPO)，由锁模.Yb:KGW 振荡器泵浦。在泵浦功率为 7 W 的情况下，在 1.41-1.71 μm 区域产生高达 2.05 W 的平均功率，重复率为 151 MHz，相当于泵浦信号转换效率为 29.3%。补偿腔内色散后，在1.6μm处测得信号波的脉冲宽度为200fs，接近变换极限脉冲持续时间。对于闲频脉冲，在2.61至3.84μm的调谐范围内，平均功率大于1W，3小时内的无源稳定性优于0.7%rms。
We report a broadly tunable mid-infrared femtosecond KTiOPO4.optical parametric oscillator (OPO) pumped by a modelocked.Yb:KGW oscillator. Under pump power of 7 W, up to 2.05 W average power was generated in the 1.41–1.71 μm region.at a repetition rate of 151 MHz, corresponding to a pump-to-signal conversion efficiency of 29.3%. After compensating the.intracavity dispersion, the pulse width of the signal wave was measured to be 200 fs at 1.6 μm, close to the transform-limited.pulse duration. For the idler pulse, during the tuning range from 2.61 to 3.84 μm, the average powers were greater than 1 W,.with a passive stability better than 0.7% rms during 3 h.