Description: A very compact, very simple set of auxiliary (repumper, clear-out and cooling) light sources for the operation of a mobile strontium ion clock is proposed. The proposed repumper and clear-out sources will operate without the need for any stabilization and will be based on mature laser technologies. The cooling laser will be stabilized to a rubidium cell and will be built in a compact, uniform package.

Benefits: Precision time-keeping Frequency references Deep space navigation

Optical frequency references Optical clocks