Design of LD in-band direct-pumping side surface polished micro-rod Nd:YVO<sub>4</sub> laser

Design of LD in-band direct-pumping side surface polished micro-rod Nd:YVO₄ laser

Zhang Wen-Qi, Wang Fei, Liu Qiang, Gong Ma-Li^†,

Overall efficiencies as a function of crystal length with different crystal diameters. The pump beam radii are 100 μm, 200 μm, and 300 μm, and the laser beam radii are 200 μm, 400 μm, and 600 μm when crystal diameters are 0.5 mm, 1 mm, and 1.5 mm.