JPWO2021019447A5

JPWO2021019447A5 -

Info

Publication number: JPWO2021019447A5
Application number: JP2022506537A
Authority: JP
Publication date: 2023-08-08

Claims

A laser system,
an annular mirror whose inner surface has a high reflectivity for the wavelength of the laser emitted by said laser system;
a pair of planar metal electrodes positioned proximate opposite edges of the annular mirror perpendicular to the axis of the annular mirror;
a pair of end mirrors disposed in at least one opening; and a ceramic material in the form of a disc disposed in the inner volume of said annular mirror;
said mirror having said at least one opening in its surface;
the electrodes configured to apply an RF field between the electrodes;
one of said end mirrors is a high reflectance mirror and the other of said end mirrors is a partial reflector;
The ceramic material has a series of channels formed in the ceramic material to create a zigzag path in the ceramic material, each section of the zigzag path having the section aligned with the axis of the annular mirror. aligned at an angle such that it does not pass through and strikes the annular mirror at a pair of different points on the circumference of the annular mirror;
A laser system wherein (i) said zigzag path when filled with gain medium, (ii) said annular mirror and (iii) said pair of end mirrors together form a laser cavity.

said at least one opening is said single opening such that two adjacent sections of said zig-zag path meet at a single opening;
The pair of end mirrors are both perpendicular to one of the sections of the zig-zag path where one end mirror meets at the one opening and the other end mirror meets the two at the one opening. 2. The laser system of claim 1, positioned at said single aperture at an angle such that it is perpendicular to the other of the two sections.

one of the pair of end mirrors positioned perpendicular to the first section of the zigzag path;
the other of the end mirrors is positioned perpendicular to the second section of the zigzag path;
3. The laser system of claim 2, wherein said second section is located on said zigzag path associated with said first section after multiple collisions between said annular mirror and said zigzag path.

the at least one opening is a pair of openings;
2. The laser system of claim 1, wherein said zigzag path begins at one of said pair of openings and ends at the other of said pair of openings.

one of the pair of end mirrors located in a first of the pair of openings and vertically aligned with a first section of the zigzag path;
the other of said end mirrors located in a second of said pair of openings and vertically aligned with a second section of said zigzag path;
5. The laser system of claim 4, wherein the second section is located on the zigzag path of the first section after multiple collisions between the annular mirror and the zigzag path.

The laser system of any one of claims 1-5, further comprising cooling passages attached to the pair of planar metal electrodes.

The laser system of any one of claims 1-6, wherein the annular mirror has at least one of : (a) a right cylindrical shape ; and (b) a shape that also has curvature out of the plane of the annulus .

A laser system according to any preceding claim, wherein the ceramic material is selected from the group consisting of beryllium oxide and aluminum oxide .

The laser system according to any one of claims 1 to 8 , wherein said laser is a carbon dioxide laser or a carbon monoxide laser .

applying an RF field between said pair of planar metal electrodes of a laser system according to any one of claims 1 to 9 having a gain medium encased within said channel , thereby causing lasing of the gain medium; Cause, method of generating a laser beam.