A Diode Pumped Alkali Metal Vapor High Pressure Gain Cell
A gain pool and alkali metal technology, applied in laser parts, lasers, electrical components, etc., can solve problems such as narrow absorption bandwidth and limit the development of lasers, and achieve the effect of ensuring no pollution and avoiding quartz cracking.
Inactive Publication Date: 2018-09-28
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
[0002] Diode-pumped alkali metal vapor lasers belong to the category of gas lasers, and their absorption bandwidth at normal pressure is very narrow, which greatly limits the development of lasers
In this way, the technical difficulty to be overcome in the development of a diode-pumped alkali metal vapor high-pressure gain cell is: how to seal the quartz window and the metal gain cell body under high pressure without using a non-metallic sealing ring, and at the same time in the heating-cooling process Quartz cell windows will not crack due to thermal stress extrusion of the metal gain cell
These problems have become the technical bottlenecks in the development of diode-pumped alkali metal vapor high-pressure gain cells
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[0015] Such as figure 1 As shown, the whole set of gain cell includes: gain cell body, quartz window, window flange, and air hole piston. The main body of the gain pool is cylindrical, with a height of 100mm and a diameter of 120mm; a cylindrical pool is cut at the upper and lower ends of the cylinder, the diameter of the cylindrical pool is 40mm, and the axis of the two cylindrical pools is 60mm apart. The center of the main body of the gain pool is a symmetrical structure; the center of the two cylindrical pools is connected through a cylindrical through hole, and the axis of the cylindrical through hole connects the centers of the bottom surfaces of the two cylindrical pools and passes through the center of the main body of the gain pool. The cylindrical pool is provided with a buffer snap ring structure, and the buffer snap ring is an annular structure that is extended from the wall of the cylindrical pool and is coaxial with the cylindrical pool (the buffer snap ring is a...
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The invention provides a diode-pumped alkali metal vapor laser, and belongs to the domain of gas lasers. An absorption bandwidth at normal pressure is small; and development of the laser is greatly limited. In order to increase the absorption bandwidth, development of a high-pressure gain pool is very necessary. In the development of a diode-pumped alkali metal vapor high-pressure gain pool, technological difficulties should be overcome as follows: the space between a quartz window and a main metal gain pool body is sealed without a non-metal seal ring in a high-pressure condition; and meanwhile, the quartz window does not crack due to thermal stress extrusion of the metal gain pool in the heating-cooling process. These problems become the technological difficulties in developing the diode-pumped alkali metal vapor high-pressure gain pool. The invention relates to the technical field of novel lasers. Particularly, the technological difficulties in developing the diode-pumped alkali metal vapor high-pressure gain pool are solved; a diode-pumped alkali metal vapor absorption spectrum line is relatively wide; and absorption of a pump light and generation of a laser light are facilitated.
Description
technical field [0001] The present invention relates to the technical field of novel lasers, more specifically, the present invention relates to a solution to the technical problem of diode-pumped alkali metal vapor high-pressure gain cell, which makes the absorption line of diode-pumped alkali metal vapor wider and more favorable for pumping Absorption of light and generation of laser light. Background technique [0002] Diode-pumped alkali metal vapor lasers belong to the category of gas lasers, and their absorption bandwidth at normal pressure is very narrow, which greatly limits the development of lasers. To increase the absorption bandwidth, it is necessary to develop a high-voltage gain cell. Due to the very active nature of the alkali metal, it will react with most non-metallic materials and even most metal materials. At the same time, considering the pressure-bearing capacity of the material of the gain pool, there are strict restrictions on the selection of the mat...
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IPC IPC(8): H01S3/02H01S3/0941
Inventor 贾春燕刘万发郭敬为刘通公发全
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI