Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Composite-type Rb-87 optical-pumping light source for the rubidium frequency standard

N. Oura, Naimu Kuramochi, Shigeya Naritsuka, Teruhiko Hayashi

Published Mar 1, 1982• 2 citations
OpenAlex

Abstract

This paper describes the experimental results and theoretical analysis of a newly devised compact light source for the Rubidium Frequency Standard (RFS). The light source is composed of a cylindrical Rb-87 lamp 10 mm diameter and a Rb-85 filter cell 3-7 mm long attached to the front flat face of the lamp. This composite-type device is operated in an oven at about 100-deg C. Thus a light source for Rb-87 hyperfine optical pumping less than 4 cm long by 3 cm diameter has been constructed.

Related papers

Composite-type ^87Rb optical-pumping light source

Naimu Kuramochi, Shigeya Naritsuka, N. Oura

A (87)Rb hyperfine optical-pumping light source less than 4 cm long has been fabricated. Features of this new light source are: A 3-7-mm-long (85)Rb filter cell is attached to the front face of a cylindrical (87)Rb lamp with a diameter of 10mm, and both the lamp and the filter cell are operated at the same temperature of about 100 degrees C. A satisfactory spectral profile of D(1)-line output (lambda = 794.8 nm) has been observed by using a Fabry-Perot interferometer.

Optics Letters•Feb 1, 1981•2 citations

A compact, high-performance laser-pumped rubidium atomic frequency standard

C. Affolderbach, G. Mileti, Fabien Droz

The paper presents the realisation of a high-performance vapour-cell atomic frequency standard demonstrator based on laser optical pumping. The development of such devices aims to fully exploit the advantages of using a narrow-band diode laser pump light source instead of the discharge lamps commonly used in Rb gas-cell clocks. These advantages include improved control over the pump light spectrum, higher selectivity of the optical pumping, and increased signal contrast, and thus show the potential for the realisation of Rb atomic clocks with improved short-term frequency stability.

European Quantum Electronics Conference (EQEC)•Jan 18, 2006•1 citation

Potential for improving the rubidium frequency standard with a novel optical pumping scheme using diode lasers

Natarajan D. Bhaskar

It is experimentally demonstrated that, using diode lasers for optical pumping and RF /spl pi/-pulses for population transfer, nearly all of the ground state Rb atoms in a vapor cell can be concentrated into one of the two M/sub F/ = 0 sublevels. The fractional population difference /spl Delta/ between the two M/sub F/ = 0 levels can be made as high as 1. This should result in a very significant improvement (about a factor of 100) in the S/N over the conventional discharge-lamp-pumped rubidium frequency standards (RFSs). This would lead to a substantial improvement in the short-term stability of the RFS. This is a pulsed population transfer scheme. The microwave interrogation takes place in the absence of strong pumping light. This has the potential for eliminating the light shift and thereby improving the long-term frequency stability of a an RFS.>

Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)•Dec 30, 2002•0 citations

On the light shift in optical pumping of rubidium 87: the techniques of "separated" and "integrated" hyperfine filtering

Jaques Vanier, R. Kunski, Peter Paulin +2 more

Results of measurements of light shifts observed in the optical pumping of rubidium 87 by means of electrodeless rubidium lamps are reported. The techniques of separated and integrated hyperfine filtering by means of the rubidium 85 isotope are compared. A phenomenological theory which explains qualitatively the results obtained is presented. Conclusions are drawn in relation to the use of either technique in passive rubidium frequency standards.

Canadian Journal of Physics•Oct 1, 1982•33 citations

Spectral Profiles of the87Rb Pumping Light Source

Naimu Kuramochi, Hitohiro Fukuyo, Isao Matsuda +1 more

This paper is concerned with experimental studies of the 87 Rb pumping light source, which is composed of a 87 Rb lamp and a 85 Rb filter cell. Spectral profiles of the pumping light were observed by means of a Fabry-Perot interferometer. Measurements were executed by using ten filter cells which contained 85 Rb atoms and various gases (N 2 , Ar and He) under various pressures. As a result, it became clear that the change of the pumping light spectrum with the filter cell temperature was specific to each cell. When we took note of the ratio and the difference of the two components of Rb D 1 line as measures of the filtering effect, the temperature dependence of these values relied on the kind and the pressure of the foreign gas.

Japanese Journal of Applied Physics•Jun 1, 1976•8 citations

A laser optically-pumped Rubidium vapour-cell frequency standard using a DFB laser diode

C. Affolderbach, G. Mileti, Fabien Droz

A laser optically-pumped vapour-cell atomic frequency standard ("Rb clock") using a DFB laser diode as pump light source is presented. The Rb clock is based on probing the ground-state hyperfine "clock" transition at 6.8 GHz of atomic87Rb, by optical-microwave double-resonance technique. The frequency stability of the clock is measured.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 1, 2007•0 citations
This paper describes the experimental results and theoretical analysis of a newly devised compact light source for the Rubidium Frequency Standard (RFS). The light source is composed of a cylindrical Rb-87 lamp 10 mm diameter and a Rb-85 filter cell 3-7 mm long attached to the front flat face of the lamp. This composite-type device is operated in an oven at about 100-deg C. Thus a light source for Rb-87 hyperfine optical pumping less than 4 cm long by 3 cm diameter has been constructed.
The paper presents the realisation of a high-performance vapour-cell atomic frequency standard demonstrator based on laser optical pumping. The development of such devices aims to fully exploit the advantages of using a narrow-band diode laser pump light source instead of the discharge lamps commonly used in Rb gas-cell clocks. These advantages include improved control over the pump light spectrum, higher selectivity of the optical pumping, and increased signal contrast, and thus show the potential for the realisation of Rb atomic clocks with improved short-term frequency stability.
It is experimentally demonstrated that, using diode lasers for optical pumping and RF /spl pi/-pulses for population transfer, nearly all of the ground state Rb atoms in a vapor cell can be concentrated into one of the two M/sub F/ = 0 sublevels. The fractional population difference /spl Delta/ between the two M/sub F/ = 0 levels can be made as high as 1. This should result in a very significant improvement (about a factor of 100) in the S/N over the conventional discharge-lamp-pumped rubidium frequency standards (RFSs). This would lead to a substantial improvement in the short-term stability of the RFS. This is a pulsed population transfer scheme. The microwave interrogation takes place in the absence of strong pumping light. This has the potential for eliminating the light shift and thereby improving the long-term frequency stability of a an RFS.>
This paper is concerned with experimental studies of the 87 Rb pumping light source, which is composed of a 87 Rb lamp and a 85 Rb filter cell. Spectral profiles of the pumping light were observed by means of a Fabry-Perot interferometer. Measurements were executed by using ten filter cells which contained 85 Rb atoms and various gases (N 2 , Ar and He) under various pressures. As a result, it became clear that the change of the pumping light spectrum with the filter cell temperature was specific to each cell. When we took note of the ratio and the difference of the two components of Rb D 1 line as measures of the filtering effect, the temperature dependence of these values relied on the kind and the pressure of the foreign gas.