This is a space where I make notes to myself '''Notes''' <> ----- == Things to Think About == 1. What are the problems involved in using a double demodulation scheme? How is it related to cavity macroscopic length? 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. The mirrors' losses are usually not well known. A lower finesse has less sensitivity to losses in the mirrors. Why? 1. 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.