Abstract

A technique based on an FM/AM method is proposed for measuring the linewidth enhancement factor α of a diode-pumped $\mathrm{Nd}:\mathrm{Y}\mathrm{V}{\mathrm{O}}_4$ laser. A standard rate equation model is complemented with temperature effects to explain the observed behavior under pump modulation. The result $\alpha =0.25\pm 0.13$ agrees with values deduced from recent optical injection experiments.

© 2005 Optical Society of America

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