title: Multiwatt-level continuous-wave midwave infrared generation using difference frequency mixing in periodically poled MgO-doped lithium niobate.
abstract: Over 3.5 W of continuous-wave power at 3.4 μm was obtained by single-pass difference frequency mixing of 1.064 and 1.55 μm fiber lasers in a 5 cm long periodically poled lithium niobate crystal. Good agreement was obtained between the observed temperature dependence of the generated power and the prediction from focused Gaussian beam theory.
authors.forename: Shekhar
authors.initials: S
authors.lastname: Guha
authors.forename: Jacob O
authors.initials: JO
authors.lastname: Barnes
authors.forename: Leonel P
authors.initials: LP
authors.lastname: Gonzalez