Accession Number : ADA485257


Title :   The Chip-Scale Atomic Clock - Low-Power Physics Package


Descriptive Note : Conference paper


Corporate Author : SYMMETRICOM-TECHNOLOGY REALIZATION CENTER BEVERLY MA


Personal Author(s) : Lutwak, R ; Deng, J ; Riley, W ; Varghese, M ; Leblanc, J ; Tepolt, G ; Mescher, M ; Serkland, D K ; Geib, K M ; Peake, G M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a485257.pdf


Report Date : Dec 2004


Pagination or Media Count : 17


Abstract : We have undertaken a development effort to produce a prototype chip-scale atomic clock (CSAC). The design goals include short-term stability, with a total power consumption of less than 30 mW and overall device volume 1 cubic cm. The stringent power requirement dominates the physics package architecture, necessarily dictating a small volume gaseous atomic ensemble interrogated by a low-power semiconductor laser. At PTTI 2002 and PTTI 2003, we reported on laboratory experiments that underlie the fundamental architecture of our CSAC, based on interrogation of the cesium D1 transition by the technique of coherent population trapping (CPT). In the past year, the development effort has shifted from fundamental research and feasibility investigation to engineering and prototype development. In this paper, we report on the design of a rugged and compact physics package that is expected to exceed the ultimate performance and power requirements of the CSAC.


Descriptors :   *LOW POWER , *PHYSICS , *ATOMIC CLOCKS , SEMICONDUCTOR LASERS , CESIUM , ENERGY CONSUMPTION , CHIPS(ELECTRONICS) , SYMPOSIA , STABILITY , PROTOTYPES


Subject Categories : Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE