2008•Chinese Journal of Quantum ElectronicsRequires access

Experimental study on KTP OPO producing 2.6～2.8 μm radiation

Nie Jin-song

Abstract

The 2.6～2.8μm tunable laser setup based on single-resonant optical parametric oscillator(SRO) is designed and operated in order to get 2.7μm tunable laser.The angle tuning curve and the effective nonlinear coefficient ofⅡ(B)KTP optical parametric oscillator(OPO)are given.The cut angles of the crystalθandψare 62°and 0°respectively and the effective nonlinear coefficient is -2.97 pm/V.The 578 pJ output energy is obtained with the KTP SRO pumped at 1.064 pm TEM_(00) mode laser,and the energy conversion efficiency is 1.7%.The output wavelength can be tuned from 2.6 to 2.8μm.

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Key concepts: Optical parametric oscillator, Materials science, Optics, Laser, Wavelength, Radiation, Nonlinear optics, Crystal (programming language)