A compact, frequency stabilized laser head for space Rb clocks and wavelength references

Details A compact, frequency stabilized laser head for space Rb clocks and wavelength references A compact, frequency stabilized laser head for space Rb clocks and wavelength references

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.554..619m&link_type=abstract

In: Proceedings of the 5th International Conference on Space Optics (ICSO 2004), 30 March - 2 April 2004, Toulouse, France. Ed.:

Physics

Optics

1

Generic Technology, Space Optics

Scientific paper

We present our ongoing development of a compact (<1.5 liters) and high-performance (10-14 at 104s) laser-pumped rubidium clock for space applications like, e.g., satellite navigation systems (GALILEO). A compact laser head was developed that includes frequency stabilization of the pump light to a reference cell. Recent clock stability results obtained with this laser head reach 2×10-13 at 1000s, limited mainly by residual cell temperature coefficients and light shift effects. We discuss strategies to overcome these limitations and the relationship between the stabilities of the pump laser and the clock. Comparisons of the laser and clock frequency stabilities are presented for stabilization to both Doppler and sub-Doppler spectroscopy.

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