Title (en)

METHOD FOR MODULATING AN ATOMIC CLOCK SIGNAL WITH COHERENT POPULATION TRAPPING AND CORRESPONDING ATOMIC CLOCK

Title (de)

VERFAHREN ZUR MODULATION EINES ATOMUHRSIGNALS MIT COHERENT POPULATION TRAPPING UND ENTSPRECHENDE ATOMUHR

Title (fr)

PROCÉDÉ DE GÉNÉRATION D'UN SIGNAL D'HORLOGE ATOMIQUE A PIÉGEAGE COHÉRENT DE POPULATION ET HORLOGE ATOMIQUE CORRESPONDANTE

Publication

EP 1730608 B1 20110504 (FR)

Application

EP 05744396 A 20050329

Priority

• FR 2005000754 W 20050329
• FR 0403289 A 20040330

Abstract (en)

[origin: WO2005101141A1] The invention concerns a method for modulating an atomic clock signal and a corresponding atomic clock. The laser beams (L1, L2) are pulse-modulated in amplitude to illuminate (A) an interactive medium. A detection (B) of the current pulse (Sr) and of the pulses (Sr-1 to Sr-p) preceding said current impulsion is performed. Said pulses are superimposed (C) by linear combination to generate a compensated atomic clock signal (SHC) whereof the spectral width is minimized. The invention is applicable to atomic clocks with pulsed interrogation whereof the interactive medium consists of thermal or laser-cooled atoms.

IPC 8 full level

G04F 5/14 (2006.01); H03L 7/26 (2006.01)

CPC (source: EP US)

G04F 5/14 (2013.01 - EP US); G04F 5/145 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

FR 2868558 A1 20051007; FR 2868558 B1 20060630; AT E508396 T1 20110515; CN 100587629 C 20100203; CN 1973248 A 20070530; DE 602005027826 D1 20110616; EP 1730608 A1 20061213; EP 1730608 B1 20110504; JP 2007530965 A 20071101; JP 4801044 B2 20111026; US 2007200643 A1 20070830; US 7501906 B2 20090310; WO 2005101141 A1 20051027

DOCDB simple family (application)

FR 0403289 A 20040330; AT 05744396 T 20050329; CN 200580014038 A 20050329; DE 602005027826 T 20050329; EP 05744396 A 20050329; FR 2005000754 W 20050329; JP 2007505591 A 20050329; US 59457505 A 20050329