[time-nuts] Temperature accuracy / repeatability / drift of double ovens

[ghf at hoffmann-hochfrequenz.de]

Temperature accuracy / repeatability / drift of double ovens:

What can be reached here, with a tolerable effort?
Is there anything known about that in the public? mK-numbers?

The application is not a crystal oven this time, but diode lasers
that interrogate Rb atoms and must be kept in lockstep at a certain
beat frequency. The frequency tuning is mostly by temperature;
laser diode current plays a minor role, but probably via changing the
local temperature in the junction and a little bit later in the cavity.

Are there any GoTo thermistors / circuits for stability?

Cheers, Gerhard
(stumbling into new territory)