2μm OPO laser based on KTA

ZHU Ya-chen; LAN Ge; LI Tong; NIU Rui-hua; TAO Wei

In order to generate 2μm laser,a novel method was presented with kalium titanyl arsenate(KTA) as a nonlinear crystal in optical parametric oscillators.It was proved feasible by comparing the nonlinear parameters between KTA and KTP crystal.The graph of the relationship between the wavelength and the tunable-angle was drawn based on Sellmeier equation and refractive index ellipsoid of KTA.After compareson it was found that the crystal has better nonlinear characteristic at cut angles of φ=0°,θ=48.37°.Then the walk-off angle,acceptance angle and bandwidth were calculated.The basic problems on the design of KTA-OPO were solved and the study foundation was built up for the future experiments.

1. Southwest Institute of Technical Physics, Chengdu 610041, China;

2. Military Representative Organ Stationed in Southwest Technology and Physics Institute, Chengdu 610041, China

Received Date: 2006-03-16

Accepted Date: 2006-05-15

Available Online: 2007-06-25

Abstract: In order to generate 2μm laser,a novel method was presented with kalium titanyl arsenate(KTA) as a nonlinear crystal in optical parametric oscillators.It was proved feasible by comparing the nonlinear parameters between KTA and KTP crystal.The graph of the relationship between the wavelength and the tunable-angle was drawn based on Sellmeier equation and refractive index ellipsoid of KTA.After compareson it was found that the crystal has better nonlinear characteristic at cut angles of φ=0°,θ=48.37°.Then the walk-off angle,acceptance angle and bandwidth were calculated.The basic problems on the design of KTA-OPO were solved and the study foundation was built up for the future experiments.

HTML

Reference (10)

[1]	JOHNSON L F,GEUSIC J E,van UITERT L G.Coherent oscillation from Tm3+,Ho3+,Yb3+ and Er3+ ions in yttrium aluminum garnet[J].A P L,1965,7(5):127～129.
[2]	KIELECK C,HIRTH A.Investigations of a Q-switched Ho:YAG laserintracavity-pumped by a diode-pumped Tm:YLF laser[J].Proc SPIE,2004,5460:56～63.
[3]	WANG Y Zh,YAO B Q,JU Y L et al.1W～2W ZnGeP2 optical parametric oscillator[J].High Power Laser and Particle Beam,2005,17(S1):163～166(in Chinese).
[4]	YAO B Q,HE W J,LI Y F et al.Technical study of ZnGeP2 optical parametric oscillator pumped by a 2μm Tm,Ho:YLF laser[J].Chinese Journal of Laser,2005,32(1):39～42(in Chinese).
[5]	BEACH R I,SUTTON S B,HONEA E C et al.High power 2μm diode pumped Tm:YAG laser[J].SPIE,1996,2698:168～171.
[6]	WANG K Q,HAN L,WANG J J et al.LD pumped intro-cavity OPO high repetition frequency 2μm laser[J].High Power Laser and Particle Beam,2005,17(S1):185～188(in Chinese).
[7]	WEI J Q,WANG J Y,LIU Y G.The study about growth and character of KTiOAsO4 crystal[J].Artificial Crystal,1994,23(2):95～101(in Chinese).
[8]	MARK S W,PETER F M,JEFFREY J K.High-average-power KTiOAsO4 optical parametric oscillator[J].Opt Lett,1998,23(15):1161～1163.
[9]	BOSENBERG W R,DEAN R.Broadly tunable single-frequency optical parametric frequency-conversion system[J].J O S A,1993,10(9):1716～1722.
[10]	YAO B Q,WANG Y Zh,WANG Q.Development of mid-infared optical parametric oscillator[J].Laser Technology,2002,26(3):217～220(in Chinese).

2μm OPO laser based on KTA

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views