Study of a 87Rb Vapour Discriminator with Laser Pumping for a High Stability Onboard Frequency Standard

Author

Besedina, A. ; Berezovskaya, O. ; Gevorkyan, A. ; Zholnerov, V.

Author_Institution

, St. Petersburg

fYear

2007

fDate

May 29 2007-June 1 2007

Firstpage

607

Lastpage

612

Abstract

We report on our progress towards the realization of a high-performance laser-pumped rubidium vapour-cell atomic frequency standard for satellite navigation. The conversion process of the laser´s FM-AM noise which degrades the SNR of a gas-cell discriminator with ⁸⁷Rb and buffer gases was experimentally studied as a function of laser´s intensity and its frequency using the double radio-optical resonance scheme (DROR) operating on two optical transitions: |2>-²P_3/2 or |1>-²P_3/2. The new method is proposed and realized for fine tuning of a laser frequency to the value corresponding to the minimum value of FM-AM conversion noise. While using this method, the RFS breadboard is built.

Keywords

atomic clocks; frequency stability; frequency standards; laser noise; laser transitions; laser tuning; magnetic double resonance; optical double resonance; optical pumping; rubidium; satellite navigation; RFS breadboard; Rb; buffer gases; conversion process; double radio-optical resonance scheme; gas-cell discriminator; high stability onboard frequency standard; laser FM-AM noise; laser frequency tuning; laser intensity; laser pumping; optical transitions; rubidium vapour discriminator; satellite navigation; Frequency conversion; Gas lasers; Laser excitation; Laser noise; Laser stability; Laser transitions; Optical buffering; Optical frequency conversion; Optical noise; Pump lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2007 Joint with the 21st European Frequency and Time Forum. IEEE International

Conference_Location

Geneva

ISSN

1075-6787

Print_ISBN

978-1-4244-0646-3

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2007.4319144

Filename

4319144