Abstract
We report on a narrowband, nonresonant periodically poled lithium niobate (PPLN) optical parametric oscillator using a volume Bragg grating (VBG) as the spectral narrowing element. Pumping by a Nd:YVO4 laser at 1.06μm, a maximum output power of 4.75W is achieved at a repetition rate of 20kHz for a conversion efficiency of 47.5%. Both signal and idler spectra are narrowed to less than 2nm, at good beam quality and stability.
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