The temperature in the central part of our lab is now stable to within ±0.05 C.

It’s been a complicated and needlesly drawn out technical battle to get to this point. For comparison, here’s a plot of what the HVAC system was doing to the lab temperature shortly after it was commissioned, over a year ago. (Emerson/Liebert, you are permanently blacklisted as far as we’re concerned)

Needless to say it wasn’t easy to make progress getting the lasers stabilized in an environment like that. Now that we’ve got a proper laboratory to work in, we should be able to make a lot more progress in the next 12 months!