This page is for the project to observe squeezing from the 40m.

Links to Finesse playground: LIGO gitlab Finesse_playground:master

To check out the repository at your commandline use

git clone https://git.ligo.org/IFOsim/Finesse_playground.git

If you have second factor authentication or want to be a pro use SSH (you will need to set up a public private key pair

git clone git@git.ligo.org:IFOsim/Finesse_playground.git

We will be using the 40m subdirectory.

Getting and installing Finesse

Finesse is a software package for doing Fourier analysis of interferometric systems. It models a system as a network of connected nodes and solves a set of linear equations to generate output sweeping over one parameter at a time. Some of its syntax and ethos is evolved from LISO.

There is no cmdline package install/management (i.e. apt-get,brew,macports), you need and move binaries into a permanent directory (such as /usr/local/bin) and add this path to .bash_profile (mac) or .bashrc (mac/Linux). Use vim/nano/emacs and add the following lines to your bash profile

#Add path to finesse binary for all instances of shell
PATH+=":/usr/local/bin/Finesse2.1/"
export PATH

# Set path of finesse kat.ini universal config file
export KATINI=/usr/local/bin/Finesse2.1/kat.ini

You can also just use the finesse binary 'kat' to run .kat files inside the same directory. The above should be used if you want to run it anywhere inside your system.