I am reviving my laser hobby... as I do feel an urge to do something practical and swing
the soldering iron once in a while, or just contemplate upon the beauty
of a beam of coherent light!
This is mainly for the fun of tinkering with
electronics and building stuff, but I do a bit of holography as well, in order
to have a good use of my lasers.
Below I have set up some notes about my laser-related projects; I wish them
to be helpful to other laser enthusiasts, much like I appreciated detailed
help from many others:
In the background, my Lexel 88 argon ion laser head which can deliver more
than 2W of blue-green light,
I mainly use it for holography. Shown
here is a setup for calibrating light sensors: