The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2006
Filed:
Jan. 25, 2001
Dirk Basting, Fort Lauderdale, FL (US);
Wolfgang Zschocke, Noerten-Hardenberg, DE;
Thomas Schröeder, Göttingen, DE;
Juergen Kleinschmidt, Weissenfels, DE;
Matthias Kramer, Göttingen, DE;
Uwe Stamm, Göttingen, DE;
Dirk Basting, Fort Lauderdale, FL (US);
Wolfgang Zschocke, Noerten-Hardenberg, DE;
Thomas Schröeder, Göttingen, DE;
Juergen Kleinschmidt, Weissenfels, DE;
Matthias Kramer, Göttingen, DE;
Uwe Stamm, Göttingen, DE;
Lambda Physik AG, Goettingen, DE;
Abstract
A line-narrowing module for a laser includes a prism beam expander and a grating preferably attached to a heat sink. A pressure-controlled enclosure filled with an inert gas seals the grating and/or other elements of the line-narrowing module. The pressure in the enclosure is adjusted for tuning the wavelength. Preferably, the pressure is controlled by controlling the flow of an inert gas through the enclosure. A pump may be used, or an overpressure flow may be used. Alternatively, a prism of the beam expander or an etalon may be rotatable for tuning the wavelength.