Patent · US Expired

Discharge-pumped laser

US4534034A · kind A · utility

38Cited by

1References

3Claims

0Family size

Assignee

Lambda Physik AG · DE

Inventors

Kristian Hohla
Ernst-August Albers · Göttingen, DE

Key dates

Filing date	Mar 17, 1983
Grant date	Aug 6, 1985
Priority date	—
Expiry date	Mar 17, 2003

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/036
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A discharge-pumped laser with a discharge tube (1) that contains a mixture (2) of gases, that has gas inlets (4) in the vicinity of its windows (3), that has a gas outlet (7), and that is connected by lines (10, 11) and by a circulating pump (8) to a purification device that is an electrostatic filter (9) to purify the gas mixture of particles of dust without changing its composition. The gas-circulation system includes a zone (12) in which the mixture of gases being conveyed back to the gas inlets (4) becomes quiescent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.