An increasing number of applications require transmission of analog or digital subcarrier-multiplexed (SCM) RF channels over fiber. However, transmitting traditional double-sideband (DSB) signals is problematic due to chromatic dispersion. This frequency-dependent fiber dispersion produces a deleterious time delay between the two transmitted sidebands, causing serious RF power fading that is a function of subcarrier frequency, fiber distance, and accumulated dispersion [1]. Unfortunately, many potential applications involve reconfigurable optical paths, where RF fading dynamically changes with transmission distance. For robust RF-based optical systems, distance-independent RF fading compensation is highly desirable.
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