Method for laser output with separated field technology and separated field laser

A laser technology technology, applied in the laser field, can solve the problems of low accuracy and poor stability of laser signal line width, and achieve the effect of increasing interaction time, improving stability and reducing influence

Inactive Publication Date: 2009-08-12
PEKING UNIV
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Problems solved by technology

[0003] The present invention overcomes the shortcomings of too wide laser signal line width and low accuracy and poor stability produced by ordinary lasers, and applies the separation field technology in spectroscopy for the first time to the generation of stimulated radiation electromagnetic fields of physical particles, that is, using the separation field technology Produce laser output directly, provide a method of generating separated field laser, and related equipment can be called separated field laser

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  • Method for laser output with separated field technology and separated field laser

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Embodiment Construction

[0017] On the basis of satisfying the two most basic conditions of building a laser resonator and realizing the population inversion between the particle energy levels of the laser gain medium, which are necessary for general lasers, the technical feature of the present invention is to use the separation field technology to convert the laser The resonant cavity is divided into two or more folded parts, and the interaction between the gain medium of the laser and the field of the laser cavity is two or more times separated in space or time. The accompanying drawing shows the schematic structure of the split-field laser resonator with two folded parts.

[0018] In this special laser resonator, the population number of the particles as the laser gain medium is reversed and coherently undergoes two stimulated radiation interactions with the cavity field, injecting the energy of the particles of the laser gain medium into the laser resonator Inside, the laser light is output throug...

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Abstract

The invention provides a method for realizing laser output by using separation field technology, which belongs to the field of laser technology. This method uses separation field technology to divide the laser resonator into two or more equivalent parts, and the atoms and the laser resonator are coupled to each other multiple times, which increases the interaction time between the atomic beam and the resonator and reduces the time-of-flight increase. The effect of width on the laser line width, so the output laser line width is significantly narrower than that of ordinary lasers. The invention also provides a separated field laser. The laser gain medium of the laser and the field mode of the laser cavity have coherent effects separated in several time domains, and have the characteristics of good frequency stability and high frequency accuracy.

Description

technical field [0001] The invention belongs to the field of laser technology, and specifically relates to a method and equipment for realizing laser output by using separation field technology. The generated laser can be used as a coherent laser light source with high accuracy and stability, and can also be used as a high-performance optical frequency standard. Background technique [0002] N.F. Ramsey proposed the separation field technology in 1949 and won the 1989 Nobel Prize in Physics for his successful application of the frequency standard (atomic clock). Ramsey's separated-field technique has been the basis for all high-performance reference atomic clocks and atomic interferometers to date. But so far, all separation field techniques are only used to measure the absorption spectrum of the electromagnetic field by physical particles, and have never been used for the generation or measurement of the stimulated emission electromagnetic field of physical particles. In o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/082H01S3/10H01S3/22
Inventor 陈景标庄伟于得水黄凯凯
Owner PEKING UNIV
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