A technique based on an FM/AM method is proposed for measuring the linewidth enhancement factor alpha of a diode-pumped Nd:YVO4 laser. A standard rate equation model is complemented with temperature effects to explain the observed behavior under pump modulation. The result alpha=0.25±0.13 agrees with values deduced from recent optical injection experiments.
© 2005 Optical Society of America
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(140.6810) Lasers and laser optics : Thermal effects
Lasers and Laser Optics
Thomas Fordell, Simo Valling, and Åsa Marie Lindberg, "Modulation and the linewidth enhancement factor of a diode-pumped Nd:YVO4 laser," Opt. Lett. 30, 3036-3038 (2005)