SU1616467A1 - Active member of gas laser - Google Patents

Description

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Fut.3

Claims (3)

Claim 1. An active element of a gas laser containing a ceramic coarse material, a sectioned discharge channel placed in the tube, each section of which contains a liner restricting the channel cross-section, fixed in the ceramic tube and connected to the copper liner with a noticeable decrease in radiation power due to a decrease in the concentration of neutral atoms on the axis discharge due to a decrease in the reverse flow of atoms from the walls of the sleeve. Therefore, in order to obtain a high radiation power while maintaining high reliability, the ratio D <d3 <5di must also be fulfilled. If the distance between adjacent sections exceeds 4d 1. then the output radiation power decreases noticeably due to a decrease in the excitation efficiency of the laser medium, since the energy of the electric beam generated after each narrowing of the sleeve (di) decreases with distance, and at large distances (more than 4di) there is a noticeable decrease in lasing power. At the same time, the intersection distance is less than the cuff with slots, as well as a ceramic washer located in contact with the cuff, the part of the outer surface of which is conical, characterized in that, in order to simplify the manufacture and increase the reliability of the design, the insert is made in the form of a sleeve with three cylindrical sections of different inner diameters, the central section <is made with a smaller inner diameter and length compared to the end sections, one of the end sections of the sleeve is partially placed with a gap in the cavity of the end portion of the sleeve of the adjacent section, and the other end portion is partially placed with a gap in the cavity of the ceramic washer, while at least part of the conical surface of the washer is in contact with the inner surface Ί cuffs, and part of the outer cylindrical surface of the washer is made flat. 2. Active element pop. 1, characterized in that, in order to increase the radiation power, the inner diameter dt and the length h 5 of the central portion of the sleeve, the inner bg and the outer D diameters, the length h of the end portion with a smaller diameter, as well as the inner diameter th of the other end portion and the distance L between the central sections of the bushings of 10 adjacent sections satisfy the relations 1,5dί L4 4di 1,5 ddzi 3 d i D. <Bz <5di IK 0.5di l2K 4li 3. Active element no πιι, 1 and 2, which consists in the fact that, in order to increase the laser efficiency, the sleeve is made mt ma> zrialg! with work averaged over the surface l! -. · stroke not exceeding 3 eV