Integrally-designed CPT (Coherent Population Trapping) atomic frequency scale physical system

A technology of physical system and atomic frequency standard, which is applied in the field of physical system of CPT atomic frequency standard, can solve the problems of increasing circuit board area and power consumption, increasing the volume of physical system, etc., and achieves the effect of uniform magnetic field and reduced volume

Active Publication Date: 2011-06-15
CHENGDUSCEON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this structure is that the light source part and the absorbing bubble part can be controlled at different temperature points according to needs, but the disadvantage is that the volume of the physical system is increased, and the two independent temperature controls increase the area and power consumption of the circuit board.
Kernco's physical system is currently undocumented

Method used

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  • Integrally-designed CPT (Coherent Population Trapping) atomic frequency scale physical system
  • Integrally-designed CPT (Coherent Population Trapping) atomic frequency scale physical system
  • Integrally-designed CPT (Coherent Population Trapping) atomic frequency scale physical system

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Embodiment Construction

[0015] Figure 1 ~ Figure 2 Describes the best physical system of CPT atomic frequency standard composed of laser tube 1, laser tube cover 2, optical components, thermal ring 5, absorbing bubble cover 9, absorbing bubble 7, C field coil 8, photoelectric component and heating constant temperature device 12 Example. The C field coil 8 is directly wound on the absorbing bubble 7 and fixed by dispensing glue. At least one layer of heat-resistant insulating tape is pasted on the coil of the C field coil 8 to protect the C field coil 8 from being short-circuited with the absorbing blister 9 . The tailpipe of the absorbing bubble 7 is located in the center of one side of the absorbing bubble 7 , and the C field coil 8 is wound on the cylinder surfaces at both ends of the absorbing bubble 7 . Both theoretical and experimental results show that this winding method produces a more uniform magnetic field than the traditional method. The absorbing blister 9 is made of a high-permeabili...

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Abstract

The invention discloses an integrally-designed CPT (Coherent Population Trapping) atomic frequency scale physical system which comprises an assembly laser tube (1), an optical assembly, an absorption cell (7), a hot ring (5) and a C-field coil (8), an optoelectroulc module and a heating thermostat, wherein a laser tube sleeve (2) is rotatably assembled in an assembling hole of the hot ring (5), the laser tube (1) and the optical assembly behind the laser tube are fixed in a step assembling hole of the hot ring (5) through the laser tube sleeve (2), the C-field coil (8) directly wound on the absorption cell (7) and the absorption cell (7) are assembled on a metal absorption cell sleeve (9) with a magnetic permeability of more than 2000, and the absorption cell sleeve (9) is coaxially coupled and connected to the back of the optical assembly through the assembling hole of the non-magnetic conductor hot ring (5). Through the integrated design, the laser tube and the absorption cell are subjected to temperature control simultaneously, thus the defect of the design that the laser tube and the absorption cell are divided into two parts and respectively subjected to the temperature control in the prior art is eliminated, the volume of the physical system and the power consumption of the physical system are reduced.

Description

technical field [0001] The invention relates to a passive coherent layout trapped atomic frequency standard (CPT atomic frequency standard for short), more specifically, the invention relates to the physical system of the CPT atomic frequency standard. Background of the invention [0002] CPT atomic frequency standard CPT is currently the only new atomic frequency standard that can be miniaturized in theory. Its size, power consumption and start-up speed have greater advantages than the widely used rubidium clocks at present, so it has greater application prospects. A large number of electronic devices require the atomic frequency standard as a frequency source for self-time keeping, but due to the power consumption and large size of the atomic frequency standard, it can only be replaced by a crystal oscillator (crystal oscillator). However, the crystal oscillator has the disadvantage of large drift rate, and the long-term error of the provided time reference is large, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/26
Inventor 杜润昌曹远洪蒲晓华
Owner CHENGDUSCEON ELECTRONICS
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