Title :
Cavity pulling shift evaluated from AC Zeeman shift in an optically-pumped cs beam standard
Author :
Park, Young-Ho ; Oh, Cha-Hwan ; Kim, Pill-Soo ; Kwon, Taeg Yong ; Park, Sang Eon ; Choi, Sang-Kyung ; Lee, Ho Seong
Author_Institution :
Div. of Opt. Metrol., Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea
fDate :
4/1/2005 12:00:00 AM
Abstract :
The off-resonant component of the radio frequency (RF) spectrum causes an ac Zeeman shift in the clock transition frequency. This shift has been measured for various detuning frequencies of the off-resonant field fed into the Ramsey cavity together with an interrogating probe field. This method directly measures the buildup of the frequency-dependent RF power within the cavity. We have calculated the detuning slope of the cavity resonance curve at the clock transition frequency. The value of the cavity pulling shift of KRISS-1 has been determined.
Keywords :
Zeeman effect; atomic clocks; caesium; cavity resonators; frequency standards; light polarisation; optical pumping; resonance; Cs; KRISS; RF power; Ramsey cavity; ac Zeeman shift; atomic clocks; beam standard; cavity pulling shift; cavity resonance curve; clock transition frequency; detuning frequencies; off resonant component; optical pumping; pedestal offset; radio frequency spectrum; Antenna measurements; Clocks; Frequency measurement; Laser beams; Laser excitation; Laser transitions; Optical beams; Power measurement; Pump lasers; Radio frequency; AC Zeeman shift; KRISS-1; atomic clocks; cavity pulling; pedestal offset;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2005.843533
