Accession Number:

ADA474197

Title:

Long-Term Stability of NIST Chip-Scale Atomic Clock Physics Packages

Descriptive Note:

Conference paper

Corporate Author:

NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO TIME AND FREQUENCY DIV

Personal Author(s):

• Knappe, S.
• Shah, V.
• Gerginov, V.
• Brannon, A.
• Hollberg, L.
• Kitching, J.

Report Date:

2007-01-01

Pagination or Media Count:

11.0

Abstract:

We present measurements regarding the long-term frequency stability of NIST chip-scale atomic clock CSAC physics packages. Changes of the clock frequency are caused mainly through time-dependent light shifts by the frequency-modulated VCSEL and properties of the vapor cell. We suggest advanced CPT interrogation schemes to relax the requirements on the temperature stability of the VCSEL as well as the power of the local oscillator. Finally, we discuss the advantages and limitations of these techniques when implemented into a small package.

Descriptors:

• *FREQUENCY
• *STABILITY
• *VERTICAL CAVITY SURFACE EMITTING LASERS
• *ATOMIC CLOCKS
• TEMPERATURE
• SYMPOSIA
• CELLS
• CHIPS(ELECTRONICS)

Subject Categories:

• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE