Widely phase-matched tunable difference-
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L.H. Deng; X.M. Gao; Z.S. Cao; W.D. Chen; Y.Q. Yuan; W.J. Zhang; Z.B. Gong
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Article
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2008
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Elsevier Science
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English
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We report on the development of a laser source in the mid-infrared spectral region based on difference-frequency generation (DFG) in a periodically poled LiNbO 3 (PPLN) crystal. Continuously tunable coherent radiation from 2.75 to 4.78 lm was produced by optical parametric interaction between a diod