Global Patent Index - EP 1879268 B8

EP 1879268 B8 20090617 - Gas laser oscillating unit

Title (en)

Gas laser oscillating unit

Title (de)

Gaslaseroszillatoreinheit

Title (fr)

Unité d'oscillation de laser à gaz

Publication

EP 1879268 B8 20090617 (EN)

Application

EP 07012819 A 20070629

Priority

JP 2006192929 A 20060713

Abstract (en)

[origin: EP1879268A1] A gas laser oscillating unit having a gas junction part (23) where gas flow may be stable, whereby a stable laser beam output and/or a laser beam that does not fluctuate very much may be achieved. The laser gas, flowing through first and second excitation parts (3a,3b), is introduced into the first and second tapered gas flow passages (61a,61b). After that, the two gas flows (80a,80b) are mixed at or near the center point (51) of a gas junction part (23) and the mixed gas flows in a next flow passage (62). Then, one of the gas flows from the first excitation part is biased toward the -X direction by a first biasing member (70a) arranged in the first gas flow passage, and the other gas flow from the second excitation part is biased toward the +X direction by a second biasing member (70b) arranged in the second gas flow passage. The first gas flow passage (60a,61a) from the first excitation part (3a) to the gas junction part (23) and the second gas flow passage (60b,61b) from the second excitation part (3b) to the gas junction part (23) may be 180-degree rotationally-symmetric about a center axis (52) extending through the center point (51) of the gas junction part (23) and perpendicular to the laser axis (4).

IPC 8 full level

H01S 3/036 (2006.01); H01S 3/07 (2006.01); H01S 3/223 (2006.01)

CPC (source: EP)

H01S 3/036 (2013.01); H01S 3/073 (2013.01); H01S 3/2232 (2013.01); H01S 3/2237 (2013.01)

Designated contracting state (EPC)

DE

DOCDB simple family (publication)

EP 1879268 A1 20080116; EP 1879268 B1 20090107; EP 1879268 B8 20090617; CN 100544140 C 20090923; CN 101106249 A 20080116; DE 602007000460 D1 20090226; JP 2008021854 A 20080131; JP 4137961 B2 20080820; US 2008013585 A1 20080117; US 7664155 B2 20100216

DOCDB simple family (application)

EP 07012819 A 20070629; CN 200710128206 A 20070704; DE 602007000460 T 20070629; JP 2006192929 A 20060713; US 77172507 A 20070629