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Stabilization of a high-power diode-side-pumped intracavity-frequency-doubled CW Nd:YAG laser by compensating for thermal lensing of a KTP crystal and Nd:YAG rods

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3 Author(s)
Kojima, T. ; Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Hyogo, Japan ; Fujikawa, Shuichi ; Yasui, K.

We have analyzed the stability of a high-power diode-side-pumped intracavity-frequency-doubled CW Nd:YAG laser. It is found that large green power fluctuations observed experimentally are suppressed by compensating thermal lensing of the nonlinear crystal KTP and that of the Nd:YAG rods with an advanced resonator design. Stable CW green powers of 27 W with a beam quality of M2=8 and 16 W with M 2=1.2 (TEM00-mode) were generated

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Quantum Electronics, IEEE Journal of  (Volume:35 ,  Issue: 3 )