منابع مشابه
The Chip-scale Atomic Clock – Prototype Evaluation
The authors have developed a chip-scale atomic clock (CSAC) for applications requiring atomic timing accuracy in portable battery-powered applications. At PTTI/FCS 2005, we reported on the demonstration of a prototype CSAC, with an overall size of 10 cm, power consumption ≈150 mW, and short-term stability σy(τ)<1x10τ. Since that report, we have completed the development of the CSAC, including p...
متن کاملThe Chip-scale Atomic Clock – Recent Development Progress
We have undertaken the development of a chip-scale atomic clock (CSAC) whose design goals include short-term stability, σy (τ = 1 hour), of 1×10 with a total power consumption of 30 mW and an overall device volume of 1 cm. The stringent power requirement dominates the physics package architecture, dictating a small (< 5 mm) gaseous atomic ensemble interrogated by a low-power semiconductor laser...
متن کاملA chip-scale atomic clock based on 87Rb with improved frequency stability.
We demonstrate a microfabricated atomic clock physics package based on coherent population trapping (CPT) on the D1 line of 87Rb atoms. The package occupies a volume of 12 mm3 and requires 195 mW of power to operate at an ambient temperature of 200 degrees C. Compared to a previous microfabricated clock exciting the D2 transition in Cs [1], this 87Rb clock shows significantly improved short- an...
متن کاملLong-term Stability of Nist Chip-scale Atomic Clock Physics Packages
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 wel...
متن کاملChip-scale Lidar
Chip-Scale Lidar by Behnam Behroozpour Baghmisheh Doctor of Philosophy Electrical Engineering and Computer Sciences University of California, Berkeley Professor Bernhard E. Boser, Chair The superiority of lidar compared to radio-frequency and ultrasonic solutions in terms of depth and lateral resolution has been known for decades. In recent years, both application pull such as 3D vision for rob...
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ژورنال
عنوان ژورنال: IEEE Journal of Solid-State Circuits
سال: 2019
ISSN: 0018-9200,1558-173X
DOI: 10.1109/jssc.2018.2880920