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1. (WO1989000775) RF EXCITED ALL METAL GAS LASER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000775 International Application No.: PCT/US1987/001754
Publication Date: 26.01.1989 International Filing Date: 22.07.1987
Chapter 2 Demand Filed: 15.03.1989
IPC:
H01S 3/03 (2006.01) ,H01S 3/038 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
02
Constructional details
03
of gas laser discharge tubes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
02
Constructional details
03
of gas laser discharge tubes
038
Electrodes, e.g. special shape, configuration or composition
Applicants:
SYNRAD, INC. [US/US]; 11816 North Creek Parkway North Bothell, WA 98011-8205, US
Inventors:
LAAKMANN, Peter; US
Agent:
STORWICK, Robert, M. @; Seed and Berry 6300 Columbia Center Seattle, WA 98104-7092, US
SCHUMANN, K.;; Patentanwälte Grünecker, Kinkeldey, Stockmair & Pa rtner; Maximilianstrasse 58; D-8000 München 22, DE
Priority Data:
Title (EN) RF EXCITED ALL METAL GAS LASER
(FR) LASER A GAZ TOUT-METAL A EXCITATION HF
Abstract:
(EN) All metal RF excited gas lasers (10, 20, 30) employing organic or inorganic insulating material including polyimide and aluminum oxide to provide a structurally homogeneous laser capable of low cost fabrication and broad temperature ranges suitable for military and commercial applications. A particularly novel embodiment employs an extruded housing (32) and finned electrodes (36) and relies almost solely upon gas convection and gas conduction cooling obviating compression heat sinking. The latter embodiment permits gas flow between the laser cavity (38) and tube gas chambers through elongated gaps or spaces (46) at the corners of the cavity (38). Periodically spaced insulator guides (40) support the electrodes (36) and facilitates simple, low cost assembly.
(FR) Des lasers à gaz tout-métal à excitation HF (10, 20, 30) mettent en ÷uvre un matériau isolant organique ou inorganique renfermant du polyimide et de l'oxyde d'aluminium pour donner un laser de strcture homogène permettant de faibles coûts de fabrication et de larges plages de températures convenant à des applications militaires et commerciales. Un mode de réalisation particulièrement novateur met en ÷uvre un logement extrudé (32) ainsi que des électrodes à lames (36) et fait appel presque exclusivement au refroidissement par convexion gazeuse et par conduction gazeuse, évitant ainsi la dissipation thermique par compression. Ce mode de réalisation permet un flux gazeux entre la cavité laser (38) et les chambres tubulaires de gaz, passant par des ouvertures ou espaces allongés (46) aux coins de la cavité (38). Des guides isolants (40) espacés à intervalles réguliers supportent les électrodes (36) et facilitent un assemblage simple et peu onéreux.
Designated States: AU, JP
European Patent Office (CH, DE, FR, GB, IT, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0371014JP2702202JPH03500710DE000003786018AU1988011089