That is really quite a cool project and write-up.

   (I used to administer a laser link. go on, ask me why they aren’t very popular)
    I spent a lot of time working out how to create low powered laser transducer, capable of working on something battery powered.

This is my favourite part; very real.

I think you're right; I suspect Terry would have been tickled by the header, but if there were any physical world implementations I think he would have been overjoyed. One of my favourite Terry stories is of him making his sword, which feels similar.