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espanolSe han analizado las fluctuaciones periodicas de potencia que aparecen en un laser microchip de Nd:YVO4 doblado en frecuencia, demostrando que se deben a la oscilacion simultanea de varios modos longitudinales. Se ha mostrado que, ademas del doblado de frecuencia, tambien se produce el efecto de suma de frecuencias, observando hasta 9 maximos espectrales en 532 nm cuando oscilan simultaneamente 5 modos longitudinales en 1064 nm. EnglishPower fluctuations in a diode-pumped intracavity-doubled Nd:YVO4 microchip laser have been analysed. Their relationship with the coupling of several longitudinal modes has been experimentally demonstrated. Although second-harmonic power is generated by the nonlinear crystal, the effect of sum-frequency generation is also involved. This effect produced 9 spectral peaks at 532 nm when 5 longitudinal modes at 1064 nm were oscillating simultaneously.

Power fluctuations by longitudinal modes coupling in diode-pumped intracavity-doubled Nd:YVO4 microchip lasers