Novel Faraday anomalous dispersion atom filter structure high in integration
An atomic filter and anomalous dispersion technology, applied in lasers, phonon exciters, laser components, etc., can solve the problems of cumbersome replacement of gas chambers, unadjustable magnetic field size, fixed winding of heating methods, etc., to improve signal-to-noise Compare and simplify the effect of using preparation procedures
Inactive Publication Date: 2014-08-06
PEKING UNIV
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[0003] However, the previous Faraday anomalous dispersion atomic optical filter often has such problems: the power supply is separated from the optical filter, and an additional power supply is required when using it; there is no temperature and magnetic field display device, and a thermometer and a gauss meter need to be used separately for measurement ;The size of the magnetic field cannot be adjusted, so the optical filter does not have tuning performance; the heating method of the air chamber of the optical filter is fixed and wound with a heating tape, which makes it cumbersome to replace the air chamber
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[0030] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] In order to solve the problems of the prior art, the present invention provides a highly integrated novel Faraday anomalous dispersion atomic filter structure, its specific composition is as follows figure 1 As shown, it is a double-layer structure, the upper layer includes a power module 11, a liquid crystal display 12 and a circuit module 13, and the lower layer is the main part of the optical filter structure, including: a first permanent magnet 1, a second permanent magnet 2, First polarizer 3, second polarizer 4, alkali metal atom vapor bubble 5, heating device 6, heat dissipation windows 7 and 8, temperature sensor 9, shielding cover 10, first stepper motor 14, second stepper motor 15. The first light hole...
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The invention belongs to the technical field of atom filtering and particularly relates to a novel Faraday anomalous dispersion atom filter structure high in integration. The filter is of a double-layer structure, a power module, a liquid crystal display screen and a circuit module are arranged on the upper layer, and a body part of the filter structure is arranged on the lower layer. The body part comprises a temperature control module and a magnetic control module. Compared with an existing filter patented technology, the novel Faraday anomalous dispersion atom filter structure has the advantages that the integration is high; the temperature control module, the magnetic control module, the power module and the display module are integrated; tunability is achieved; the temperature control module and the magnetic control module are used for tuning bubble spectrum lines; the novel Faraday anomalous dispersion atom filter structure is convenient to use and high in commercial value.
Description
technical field [0001] The invention belongs to the technical field of atomic light filtering, and in particular relates to a highly integrated novel Faraday anomalous dispersion atomic light filter structure. Background technique [0002] Traditional optical filters, such as interference filters, have a wide passband width, on the order of 10nm. For crystal filters made of birefringence, the filter bandwidth is inversely proportional to the crystal thickness. Increasing the crystal thickness will reduce the receiving solid angle and increase the loss in the passband. It is difficult to meet the requirements of narrow bandwidth and high transmittance at the same time. Another example is the use of ultra-narrow-band resonance properties of atoms to develop optical filter devices, ARF (atom resonance filter, atomic resonance filter), which has the disadvantages of slow response speed and incapable of imaging. The Faraday anomalous dispersion filter can extract weak narrow-ban...
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IPC IPC(8): H01S3/10G02B27/28
Inventor 郭弘张建玮罗斌尹龙飞钟雷
Owner PEKING UNIV