Accession Number:

ADA509350

Title:

Modeling Fast Modulation Effects In Cesium Atomic Clocks

Descriptive Note:

Conference paper

Corporate Author:

AEROSPACE CORP LOS ANGELES CA ELECTRONICS RESEARCH LABORATORY

Personal Author(s):

• Hurrell, J. P.
• Johnson, W. A.
• Karuza, S. K.
• Voit, F. J.

Report Date:

1989-11-01

Pagination or Media Count:

8.0

Abstract:

A theory for fast modulation effects in cesium frequency standards has been developed and expressions derived for frequency offsets produced by Rabi and cavity pulling with square-wave phase modulation. These are compared with equivalent expressions for sine-wave phase modulation. Ratios of the amplitudes of the frequency offsets in the two modulation schemes are calculated for a mono-velocity beam and shown to be in agreement with measurements performed on a commercial standard. This analysis allows a more complete evaluation and comparison of different modulation schemes for cesium atomic beam standards.

Descriptors:

• *FREQUENCY STANDARDS
• *ATOMIC CLOCKS
• SINE WAVES
• SQUARE WAVES
• PHASE MODULATION
• CESIUM
• ATOMIC BEAMS

Subject Categories:

• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE