title: Effect of pump polarization direction on power characteristics in monolithic microchip Nd:YAG dual-frequency laser.
abstract: The pump polarization direction can greatly influence the characteristics of the laser diode end-pumped monolithic microchip Nd:YAG dual-frequency laser. We experimentally observe the lasing thresholds and the optical powers of two splitting modes versus the pump polarization direction. The effect of the pump-induced gain anisotropy on the mode oscillation sequence is analyzed. And the effect on the intensities of these modes is also proved with a rate equation model. This study contributes to the improvement of the stability and the reliability of the Nd:YAG dual-frequency laser.
authors.forename: Hao
authors.initials: H
authors.lastname: Chen
authors.forename: Shulian
authors.initials: S
authors.lastname: Zhang
authors.forename: Yidong
authors.initials: Y
authors.lastname: Tan