Additive phase noise of fiber-optic links used in photonic microwave-generation systems.

In this work, we analyze the contributions of several mechanisms to the additive phase noise of the optical fiber in a microwave-photonic link. We discuss their fiber-length dependence and their impact on the phase noise of an optoelectronic oscillator. Furthermore, we present and verify for the first time a mechanism by which double-Rayleigh scattering directly generates microwave phase noise.