Title:
AN ATOMIC BEAM OPTICAL FREQUENCY ATOMIC CLOCK AND A PRODUCING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/073652
Kind Code:
A1
Abstract:
An atomic beam optical frequency atomic clock and a producing method thereof includes
an atomic oven (1) provided in a vacuum chamber (2) which sprays an atomic beam
(8) from a fire hole after heating, a transition laser (4) corresponding to the
frequency of the transition excites the atomic beam (8) from a basic state of the
transition to an excited state of the transition which passes by means of insulating,
and the atomic beam (8) acts with the laser which corresponds to the frequency
of the transition. After acting, the atomic beam passes a signal detection region
which has a detection laser (5) and acts with the detection laser (5). After acting,
each atom emits spontaneous radiating photons, and the fluorescent photon signals
which are excited by the detection laser (5) are detected, and the transition
laser (4) which is used to detect the frequency of the atomic transition is modulated
and the frequency of the transition laser is locked at the transition spectrum
of atom by the detected signals, so the atomic clock is realized.
Inventors:
CHEN, Jingbiao (Department of Electronics, Peking University #5 Yiheyuan Road Haidian District, Beijing 71, 1000871, CN)
Application Number:
CN2006/002501
Publication Date:
July 05, 2007
Filing Date:
September 22, 2006
Export Citation:
Assignee:
PEKING UNIVERSITY (#5 Yiheyuan Road, Haidian District, Beijing 1, 100871, CN)
北京大学 (中国北京市海淀区颐和园路5号, Beijing 1, 100871, CN)
北京大学 (中国北京市海淀区颐和园路5号, Beijing 1, 100871, CN)
International Classes:
G04F5/14; H03L7/26; G04F5/00; H03L7/26
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM et al. (A-902, TOPBOX Building No.69 Beichen West Roa, Chaoyang District Beijing 9, 100029, CN)