Request InfoCoherent Inc.Coherent Inc. has expanded its Verdi family of solid-state lasers with the introduction of an IR version that produces 25 W of single-mode continuous-wave output at 1064 nm. The Verdi IR 25 has a diode-pumped Nd:YVO4 unidirectional ring resonator design, and its single-longitudinal-mode output produces <0.04% noise rms, a <2.5-MHz FWHM linewidth and a coherence length >60 m. A piezo-actuated resonator mirror enables the output frequency to be tuned over a >3.2-GHz range and/or to be locked to an external reference cavity. 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