Title :
Reducing light-shift effects in optically-pumped gas-cell atomic frequency standards
Author :
Affolderbach, C. ; Mileti, G. ; Andreeva, C. ; Slavov, D. ; Karaulanov, T. ; Cartaleva, S.
Author_Institution :
Obs. Cantonal de Neuchatel, Switzerland
Abstract :
We investigate a novel method to suppress the light-shift effect in laser-pumped passive rubidium frequency standards. The reduction of the light-shift due to additional frequency components in the pumping light is studied theoretically and compared to experimental results obtained with a frequency-modulated DBR laser diode as a pumping light source. In this way, a reduction of the light shift by a factor of 55 was successfully demonstrated. Complete cancellation of the light shift can be reached with a suitably adjusted modulation index and frequency.
Keywords :
atomic clocks; frequency modulation; frequency standards; optical pumping; rubidium; Rb; atomic frequency standards; distributed Bragg reflector laser diode; frequency modulated DBR laser diode; laser pumped passive rubidium; light shift effect; modulation index; optically pumped gas cell; pumping light source; Atom optics; Atomic clocks; Diode lasers; Distributed Bragg reflectors; Frequency; Gas lasers; Laser excitation; Laser theory; Optical pumping; Pump lasers;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1274980
