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Revision 16 as of 2019-07-17 16:19:16
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Editor: KiwamuIzumi
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Revision 18 as of 2019-07-17 16:32:22
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Editor: KiwamuIzumi
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  || ''' Freq [Hz] ''' || ''' Freq noise [Hz/Hz^1/2] ''' || ''' Phase noise [dBc/Hz] ''' || '''ROS-109-919 spec [dBc/Hz]'''||
  || 0.01 ||
  || 0.1 ||
  || 1 ||
  || 10 ||
  || 100 ||
  || 1,000 ||
  || 10,000 ||

Low Noise VCOs

Descriptions

Low phase noise, a center frequency of 70 MHz, actuation range of several 100 kHz, aaa dBm output


Prototype model


  • Designed by Y. Enomoto (2018), inspired by LIGO low noise VCOs. JGW-D1808968

Frequency Noise

  • Worse than the specification for the non-divided phase noise (klog 7425).

  • Measured freq. noise (klog 7425)

    • Freq [Hz]

      Freq noise [Hz/Hz^1/2]

      Phase noise [dBc/Hz]

      ROS-109-919 spec [dBc/Hz]

      0.01

      0.1

      1

      10

      100

      1,000

      10,000

Tuning Range


Endeavour model


  • Sophisticated version of the prototype model.

Bill of Materials

KAGRA/Subgroups/MIF/AEL/LowNoiseVCOs (last edited 2019-11-12 11:32:54 by KiwamuIzumi)