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ZHU Ya-chen, LAN Ge, LI Tong, NIU Rui-hua, TAO Wei. 2μm OPO laser based on KTA[J]. LASER TECHNOLOGY, 2007, 31(3): 317-321.
Citation: ZHU Ya-chen, LAN Ge, LI Tong, NIU Rui-hua, TAO Wei. 2μm OPO laser based on KTA[J]. LASER TECHNOLOGY, 2007, 31(3): 317-321.

2μm OPO laser based on KTA

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  • Received Date: March 15, 2006
  • Revised Date: May 14, 2006
  • Published Date: June 24, 2007
  • 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.
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