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Martin Schellhorn Marc Eichhorn Christelle Kieleck Antoine Hirth 《Comptes Rendus Physique》2007,8(10):1151-1161
An efficient, high-power mid-infrared laser source based on ZnGeP2 (ZGP) optical parametric oscillator (OPO) is presented. Using a Q-switched Ho:YAG laser as the pump source a total output power of 10.6 W was obtained in the 3–5 μm band at 10 kHz and 8.5 W at 20 kHz. The Ho:YAG laser was pumped by two diode-pumped polarization coupled Tm:YLF lasers. Optical-to-optical efficiency achieved is >8.8% (laser-diode 792 nm to mid-IR 3–5 μm). With a commercial PtSi infrared camera (256×256 pixel focal plane array, 24 μm pitch) the pointing stability of Ho pump, signal and idler beam was measured to be better than 30 μrad. Whilst propagating the OPO beams over 100 m, little absorption for the idler beam was observed, resulting in a significant higher peak-to-peak value of ±22%, whereas the peak-to-peak stability of the signal pulses remained unchanged (±13%). To cite this article: M. Schellhorn et al., C. R. Physique 8 (2007). 相似文献
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报道了一种稳定的高功率双共振2?μm 光参量振荡器(OPO). 该OPO使用调Q的线偏振全固态Nd∶YAG激光器作为抽运源,利用双棒串接补偿热致双折射和双Q开关正交放置技术提高了抽运源的输出功率和光束质量,通过腔内抽运单块KTP晶体实现了稳定的高功率2?μm 激光输出. 在调Q频率为5?kHz时,得到了295 W的2?μm 激光输出. 研究了OPO输出功率同KTP晶体温度和声光Q调制频率的关系,并测量了在29W时2?μm激光的功率稳定性. 在1 h内该OPO的功率起伏小于1.4%.
关键词:
光参量振荡器
2?μm激光器
KTP晶体
双共振 相似文献
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建立并比较了正相色谱与反相色谱测定婴幼儿配方乳粉中1,3-二油酸-2-棕榈酸甘油三酯的方法。利用乙醚和石油醚提取婴幼儿配方乳粉中的油脂,经旋转蒸发浓缩后,分别采用银离子色谱柱和C18色谱柱,配合蒸发光散射检测器检测。其中采用银离子色谱柱以二氯甲烷-丙酮为流动相梯度洗脱的正相色谱法完全分离了1,3-二油酸-2-棕榈酸甘油三酯(OPO)和1,2-二油酸-3-棕榈酸甘油三酯(OOP)两种同分异构体,方法的重复性和线性关系良好,回收率为93.0%~101.5%,精密度(RSD)为2.89%~4.56%,检出限为20 mg/kg。该方法可准确测定婴幼儿配方乳粉中OPO的含量。 相似文献
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主要对种子注入的单纵BBO光学参量振荡器进行了实验和理论研究,利用多纵模的He-Ne激光器为种子注入源,在选择了合适的光学参量振荡器(OPO)谐振腔和锁定技术后,成功地获得了单纵模光学参量振荡。种子注入功率小于1mW,线宽小于600MHZ《 相似文献
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《Molecular physics》2012,110(21-22):2665-2671
Near infrared spectra of a carbon dioxide sample enriched with oxygen-17 have been recorded using a high-resolution continuous scan Fourier transform interferometer fitted with a femto OPO/Idler laser source. Cavity enhanced absorption has been achieved in a static gas cell allowing an optimal rms noise equivalent absorption of 1.2?×?10?10?cm?1?Hz?1/2 per spectral element to be reached, corresponding to αmin?=?10?8?cm?1. Spectra were calibrated against acetylene reference line positions. Three bands in the 3ν1?+?ν3 tetrad in both 12C17O2 and 12C17O18O have been identified and rotationally analyzed, as well as some related hot bands, eight of which are newly reported and three with their analysis updated compared with a preliminary report (X. de Ghellinck d’Elseghem Vaernewijck et al., Chem. Phys. Lett. 514, 29 (2011)). 相似文献
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A new scheme of optical parametric oscillator with intracavity sum frequency generation is proposed,and the operation characters such as threshold,conversion efficiency,etc.,are theoretically studied. The factor affecting conversion efficiency is discussed. 相似文献
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受激布里渊散射相位共轭光泵浦的高效率光学参量振荡器 总被引:2,自引:1,他引:1
报道了在Nd:YAG1.06μm激光器上,用受激布里渊散射(SBS)后向放大输出作泵浦光源,用光学参量振荡(OPO)的方法,获得1.57μm激光输出,最大输出能量为21.6mJ,相应的转换效率为32%,并与直接用Nd:YAG1.06μm激光泵浦结果相比较,效率提高1.9倍,阈值降低1.7倍,实验结果与理论分析符合的较好。 相似文献
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激光二极管抽运的YAPKTP内腔倍频单频激光器及其抽运的半整块非简并光学参量振荡腔(NOPO)被固定在一体的殷钢底座上构成了全固化多功能光压缩器———Squeezer.通过控制不同的工作条件,在此装置上可以产生多种类型压缩光:阈值以上产生约6dB(74%)量子相关孪生光束;在阈值以下,通过注入信号光参量缩小过程产生21dB明亮正交振幅压缩光;将参量放大器出射的两个频率简并偏振垂直的孪生光束分开,获得振幅反关联位相正关联明亮EPR源.
关键词:
光压缩器
光学参量振荡腔(OPO)
全固化 相似文献