Abstract

We demonstrate a phase conjugation frequency dissemination scheme using an optical frequency comb as a coherent source. After the comb’s radio frequency is detected by a photodiode, its repetition frequency’s first harmonic is used to modulate a laser, which is injected into a 10 km fiber link. The round-trip signal is mixed with the triple harmonic thereby obtaining a signal that is immune to the fluctuation at the remote end. This method results in frequency instability of 1.1×1017 at 104s. Our scheme provides a potential approach to deliver coherent frequencies to many places with high stability.

© 2014 Optical Society of America

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