Infrared and Laser Engineering, Volume. 49, Issue 6, 20190423(2020)
Comparison of mid-infrared laser generated by optical parametric oscillation of BaGa4Se7 and KTiAsO4
Figures & Tables(6)
Fig. 1. Phase matching curve of BGSe and KTA( ) BGSe与KTA的相位匹配曲线( )
Fig. 3. Idle light energy of BGSe-OPO and KTA-OPO at different pump light energies
Table 1. Comparison between BGSe and KTA
View tableView in ArticleTable 1. Comparison between BGSe and KTA
Name BGSe KTA Characteristic Biaxial, monoclinic, point group m[ 11 ]Uniaxial, point group mm2[ 13 ]Transmittance range 0.47-18µm[ 14 ]0.35-5.3 µm [ 10 ]Damage threshold 557 MW/cm2[ 14 ](5 ns,1.064 µm,1 Hz)>600 MW/cm2 Nonzero tensor d 11=24.3 pm/V,d 13=20.4 pm/V [15 ]d 33=16.2 pm/V,d 31=2.8 pm/V,d 32=4.2 pm/V,d 31=2.8 pm/Vd 24=3.2 pm/V,d 15=2.3 pm/V[13 ],d eff=4.47 pm/V[10 ]
Table 2. Sellmeier coefficients of KTA
View tableView in ArticleTable 2. Sellmeier coefficients of KTA
Ax 2.149 5 Ay 2.1308 Az 2.193 1 Bx 1.020 3 By 1.056 4 Bz 1.238 2 Cx 0.042 378 Cy 0.042 523 Cz 0.059 171 Dx 0.553 1 Dy 0.692 7 Dz 0.508 8 Ex 72.304 5 Ey 54.850 5 Ez 53.289 8 px 1.995 1 py 2.001 7 pz 1.892 0 qx 1.956 7 qy 1.726 1 qz 2.000 0
Table 3. Parameters of KTA-OPO and BGSe-OPO
View tableView in ArticleTable 3. Parameters of KTA-OPO and BGSe-OPO
Parameter Meaning KTA BGSe /ns Pulse width 10 10 /μm Wavelength of signal light 1.54 1.50 /μm Wavelength of idler light 3.43 3.64 Refractive index of signal light 1.806 2 2.485 4 Refractive index of idler light 1.773 0 2.461 1 Refractive index of pump light 1.816 7 2.512 8 /F·m-1 Permittivity of vacuum c/m·s-1 Velocity of light /m·V-1 Effective nonlinear coefficient /mm Parametric effective gain length 20 15 /mm Optical length of OPO cavity 46 52.5 /mm Length of crystal 20 15
Tools
Get Citation
Copy Citation Text
Kong Hui, Bian Jintian, Ye Qing, Yao Jiyong, Wu Chang, Sun Xiaoquan. Comparison of mid-infrared laser generated by optical parametric oscillation of BaGa4Se7 and KTiAsO4[J]. Infrared and Laser Engineering, 2020, 49(6): 20190423
Paper Information
Category: Laser & laser optics
Received: Dec. 26, 2019
Accepted: Feb. 3, 2020
Published Online: Sep. 21, 2020
The Author Email: Jintian Bian (bianjt@126.com)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20