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[Author] Iku HIRANO(1hit)

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  • Development of a Microwave Exciter for 87Sr+ Ion Frequency Standards

    Iku HIRANO  

     
    BRIEF PAPER

      Vol:
    E95-C No:7
      Page(s):
    1231-1233

    A highly stable microwave exciter system has been developed for 87Sr+ ion microwave frequency standards. The controller was built to optimize the transfer function of the phase-locked loop. The upper limit of the frequency tracking error achieved was 7.7 10-15 at τ = 1 s. A phase frequency discriminator using an FPGA was also made and applied to a phase-locked loop. This paper reports on the design of and results obtained from the microwave exciter for Sr+ ion microwave frequency standards.