Synchronously pumped OPO for picosecond pulse generation in the mid-infrared near 6.45 μm using AgGaS2 and CdSiP2: a comparative study
Synchronously pumped OPO for picosecond pulse generation in the mid-infrared near 6.45 μm using AgGaS2 and CdSiP2: a comparative study
复制标题
DOI：
10.1088/1054-660x/23/8/085401
复制
发表时间：
2013-08
期刊：
影响因子：
1.2
通讯作者：
N. Hendaoui;André Peremans;Peter G. Schunemann;K. Zawilski;Valentin Petrov
中科院分区：
文献类型：
--
作者：
N. Hendaoui;André Peremans;Peter G. Schunemann;K. Zawilski;Valentin Petrov
我们比较了两种不同的中红外非线性晶体，I型和II型AgGaS2（AGS），和I型CdSiP2（CSP），在同步泵浦光参量振荡器（SPOPO）在1064 nm泵浦的性能。CSP在6.5 μm闲频波长处的性能明显优于AGS。与AGS II型和I型相比，CSP的振荡阈值分别低三倍和五倍。CSP获得了最高的量子转换效率。它使我们能够达到27.5 mW的空闲平均功率，相比之下，13和6 mW的II型和I型AGS，分别。然而，在I型和II型配置中，CSP的调谐范围比AGS窄。CSP SPOPO的性能使其适用于产生用于外科手术的6.45 μm高功率皮秒脉冲。
We compare the performance of two different mid-infrared nonlinear crystals, type I and type II AgGaS2 (AGS), and type I CdSiP2 (CSP), in a synchronously pumped optical parametric oscillator (SPOPO) pumped at 1064 nm. CSP showed a clear performance advantage at 6.5 μm idler wavelength in comparison to AGS. The oscillation threshold with CSP was three and five times lower compared to AGS type II and type I, respectively. The highest quantum conversion efficiency was obtained for CSP. It allowed us to reach 27.5 mW of idler average power, compared to 13 and 6 mW with type II and type I AGS, respectively. However, the tuning range was narrower with CSP than with AGS in both type I and type II configurations. The performance of the CSP SPOPO makes it suitable for generation of high power picosecond pulses at 6.45 μm for surgical applications.