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Alkali metal laser

An alkali metal and laser technology, used in lasers, laser parts, laser parts and other directions, can solve the problems of reducing the main oscillation power, optical efficiency, low sharpness, etc., to overcome the influence of power and efficiency, and reduce the overall loss, the effect of avoiding insertion loss

Active Publication Date: 2018-06-01
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing DPAL still has the following technical defects: a low-sharp etalon is formed between the uncoated inner surfaces of the alkali metal vapor chamber, accompanied by parasitic oscillations, which reduces the power and optical efficiency of the main oscillation

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Embodiment Construction

[0029] In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the following further describes the present disclosure in detail with reference to specific embodiments and drawings.

[0030] It should be noted that in the drawings or description of the specification, similar or identical parts use the same drawing numbers. The implementations not shown or described in the drawings are those known to those of ordinary skill in the art. In addition, although this article may provide an example of a parameter containing a specific value, it should be understood that the parameter does not need to be exactly equal to the corresponding value, but can be approximated to the corresponding value within an acceptable error tolerance or design constraint. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only directions with reference to the drawings. Therefore, the direc...

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Abstract

The invention discloses an alkali metal laser. The alkali metal laser includes: a semiconductor laser for outputting pump light; an alkali metal steam chamber including two window sheets parallel to each other; and a high reflection mirror for reflecting light generation of a wavelength corresponding to 2P1 / 2-to-2S1 / 2 jumping of alkali metal atoms; an etalon effect between the two parallel windowsheets is used as a laser output coupling element of the alkali metal laser device to output laser of the wavelength corresponding to 2P1 / 2-to-2S1 / 2 jumping of the alkali metal atoms. The alkali metallaser uses the steam chamber as a coupling mirror, can effectively avoid insertion loss due to the window sheets without coating films, can reduce the total losses of a resonant cavity, can avoid parasitic oscillation, can overcome influence of the window sheets without coating films on the DPAL (diode pumped alkali laser) power and the efficiency, and can prolong the service life of the DPAL.

Description

Technical field [0001] The present disclosure relates to the field of laser technology, and in particular, to an alkali metal laser with an uncoated inner surface of a vapor chamber as an output coupling surface. Background technique [0002] Diode pumped alkali laser (DPAL) is a new type of optically pumped gas laser. Its gain medium is vapor state alkali metal atoms, mainly potassium (K), rubidium (Rb), cesium (Cs) Vapor, the corresponding pump wavelengths are 766nm, 780nm and 852nm respectively, and the output laser wavelengths are 770nm, 795nm and 895nm respectively. DPAL has high quantum efficiency, and combines the advantages of gas lasers and solid-state lasers, and has the potential for good beam quality and ultra-high power laser output. [0003] DPAL's gain medium is an alkali metal atom in vapor state, which is located in the IA main group of the periodic table, and its chemical properties are very active. DPAL's laser wavelength is in the near-infrared band, and antir...

Claims

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Application Information

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IPC IPC(8): H01S3/03H01S3/034H01S3/094H01S3/227
CPCH01S3/03H01S3/034H01S3/094H01S3/227
Inventor 王玉洁李志永谭荣清
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI