Abstract
We use femtosecond laser frequency combs to convert optical frequency references to the microwave domain, where we demonstrate the synthesis of signals having a fractional frequency instability of at a averaging time, limited by the optical reference. The residual instability and phase noise of the femtosecond-laser-based frequency synthesizers are at and at a offset from the carrier, respectively. The timing jitter of the microwave signals is .
© 2005 Optical Society of America
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