Zjs log: Difference between revisions

--[[User:Zjsimmons|Zjsimmons]] ([[User talk:Zjsimmons|talk]]) 13:18, 28 November 2014 (CST)

A few updates. I spent much of last week modifying/constructing a lockbox for the PDH set-up utilizing the ULE cavity. I feel like i was able to apply some lessons learned from the last time around to aid assembly this time, principally putting it in a larger box made it easier to put together. Unfortunately, the cavity has a fatal problem and will be returned. They mirror glass is oriented the wrong direction giving structure on transmission and acting like a grating. Hopefully in the meantime we can get something else working to at least let us set up some of the electronics. Toward that end, we're working on two fronts:

a) we're trying out a "1030nm" cavity borrowed from quantum computing. The cavity is about 101mm in length and contains an internal label: HHR-R1030 R=100mm 1030nm 99.9805%. This gives it a FSR of about 1.5GHz.