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Transferring the Long-Term Stability of a GPS-Disciplined OCXO to Vescent’s FFC-100 Optical Frequency Comb by Repetition Rate Locking

We demonstrate a straightforward method of locking Vescent’s fiber frequency comb (FFC-100) repetition rate to any user-supplied RF oscillator.
To demonstrate the power of this technique, we lock the FFC-100 to an SRS FS740 GPS-disciplined oven-controlled crystal oscillator (OCXO) and show that the superb long-term frequency stability of the SRS FS740 is transferred faithfully to the frequency comb modes while retaining the short-term stability characteristic of the free-running comb tooth linewidths.
Read the full paper here!
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