Stabilization of the beatnote of a 1.5 μm dual-frequency laser using a fiber-optic delay line

This paper reports on the stabilization of the beatnote of a dual-frequency laser on an optical fiber delay line, in a similar way as the one used for the stabilization of a microwave oscillator. This study paves the way to the realization of widely tunable, low phase noise sources of optically carried microwave signals.