21 February 2011 Fiber-laser-pumped CW OPO for red, green, blue laser generation
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We report a continuous-wave, watt-level, red, green, and blue (RGB) laser pumped by a multi-longitudinal-mode Ybfiber laser at 1064 nm. A singly resonant optical parametric oscillator at 1.56 μm has two intracavity sum-frequency generators for red and blue laser generation. An extracavity second harmonic generator converts the residual pump power into green laser radiation. At 25-W pump power, the laser generated 3.9, 0.46, and 0.49 W at 633, 532, and 450 nm, respectively. By replacing the multi-mode pump laser with a single-frequency one, we further increased the output power of the green laser to 2 W.
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Yen-Yin Lin, Shou-Tai Lin, Yen-Chieh Huang, "Fiber-laser-pumped CW OPO for red, green, blue laser generation", Proc. SPIE 7917, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X, 791706 (21 February 2011); doi: 10.1117/12.874038; https://doi.org/10.1117/12.874038

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