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stabilization-of-microcombs.png
    
  Appears In
      
      Microresonator frequency combs for the NIST-on-a-Chip Program
      
            **Stabilization of microcombs for optical frequency synthesis and optical frequency division.**  (a) Optical spectrum of an interlocked microcomb built around f0stabilization.  (b) Characterization of the stability and accuracy of an optical mode for the phase-locked comb in (a) using overlapping Allan deviation. The fractional stability is <6×10−13/τ and reaches <3×10−16after a 2 hour measurement.  c) Tunable optical frequency synthesizer based an integrated III-V tunable laser and the microcomb in (a).  (d) Arbitrary frequency control of the synthesizer across 40 frequency setpoints to write “NIST”. (e) Microfabricated Rb-vapor cell made by NIST-B ADI group that was used to demonstrate an optical atomic clock with microcombs.

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