Author :
Laurent, Philippe ; Jentsch, Chistian ; Clairon, Andri ; Lemonde, Pierre ; Santarelli, Giorgio ; Abgrall, Michel ; Sirmain, Christian ; Picard, Frederic ; Delaroche, Christophe ; Grosjean, Olivier ; Blonde, Didier ; Chaubet, Michel ; Guillemo, Philippe ;
Abstract :
We present the first results of the engineering model of the cold atom space clock PHARA.O. A relative frequency stability of 4.2 times 10-13t-1/2 with a quartz oscillator and of 2.5 times 10-13t-1/2 with a cryogenic oscillator have been obtained on the ground with a single path in a Ramsey cavity designed for micro gravity operation.
Keywords :
atomic clocks; cryogenic electronics; crystal oscillators; PHARAO space clock; Ramsey cavity; cold atom space clock; cryogenic oscillator; engineering model ground operation; microgravity operation; quartz oscillator; relative frequency stability; Atom lasers; Atomic beams; Atomic measurements; Clocks; Fiber lasers; Frequency; Laser theory; Masers; Space missions; Testing;
