LASER SYSTEM Russian patent published in 2004 - IPC

FIELD: laser engineering; slotted gas-discharge lasers and high-power process lasers.

SUBSTANCE: laser system has N + 1 identical laser modules, each being made in the form of closed circuit of electrode plates with slot-shaped discharge channels and cavity incorporating concave and convex mirrors optically coupled through discharge channels and installed in opposition to adjacent ends of electrode plates for displacement from the latter to enable passage of output beam emitted by laser module; it also has two groups of flat mirrors, N ones per group, and output beam aperture compactor. Laser modules are installed in tiered manner and assembled into prismatic block; concave mirrors of laser module cavities in assembled block, starting from second tier, are provided with recesses in vicinity of optical axes of cavities; flat mirrors of first group are disposed behind concave mirrors of cavities in opposition to mentioned recesses and those of second group are installed in laser modules starting from first tier of block for partial coverage of laser module output beam; each mirror of second group in one tier of block is optically coupled with concave mirror in next tier of block through laser module discharge channels and through flat mirror of first group in this tier. Output beam aperture compactor is placed past concave mirrors of laser module.

EFFECT: enhanced power of laser system output beam and improved spatial emission characteristics.

4 cl, 4 dwg