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 1. How resistor current noise could affect the demod boards and thus the signals? Read [https://dcc.ligo.org/DocDB/0002/T0900200/001/current_noise.pdf Resistor Current Noise Measurements], by Frank Seifert  1. How resistor current noise could affect the demod boards and thus the signals? Read [[https://dcc.ligo.org/DocDB/0002/T0900200/001/current_noise.pdf|Resistor Current Noise Measurements]], by Frank Seifert

This is a space where I make notes to myself

Notes

Contents

  1. Things to Think About
  2. To Read
  3. How to use LISO
  4. Low Noise Electronics LIGO Standards

Things to Think About

  1. What are the problems involved in using a double demodulation scheme? How is it related to cavity macroscopic length?

  2. How resistor current noise could affect the demod boards and thus the signals? Read Resistor Current Noise Measurements, by Frank Seifert

  3. The mirrors' losses are usually not well known. A lower finesse has less sensitivity to losses in the mirrors. Why?
  4. How to calculate the optimal modulation depths? See page 59-60 of Rana's thesis for the answer.

To Read

  • ...

How to use LISO

  • The linux version of LISO is in the directory /home/stochino/alberto40m/liso/filter of my computer.
  • I modified the fil.ini file so that the gnuplot path matches with that of my computer.
  • To run LISO one has to be in the directory where the liso.linux binary file and the fil.ini file are.

  • From that directory, just call ./liso.linux <.fil file>, where the ".fil" file is the one that contains the netlist.

Low Noise Electronics LIGO Standards

Thin film resistors and polycarbonate capacitors.

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