Browse Prior Art Database

COMPACT CW LASER FOR GENERATING WHITE LIGHT

IP.com Disclosure Number: IPCOM000024425D
Original Publication Date: 1980-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 1 page(s) / 76K

Publishing Venue

Xerox Disclosure Journal

Abstract

The compact, continuous wave laser 10 is shown in the figure and comprises an outer metal housing 12, a molybdenum hollow cathode 14, housing 12 allowing heat generated in the cathode 14 to be dissipated into the outer environment, anode 16, a plurality of metal-to-ceramic seals 18, Brewster windows 20 and 22, a broadband high reflector mirror 24, a broadband transmitter mirror 26, auxiliary anodes 28 and 30 and a metal reservoir 32.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 72% of the total text.

Page 1 of 1

XEROX DISCLOSURE JOURNAL

COMPACT CW LASER FOR GENERATING Proposed Classification WHITE LIGHT US. Cl. 331/94.5 Shing C. Wang Int. Cl. HOls 3/00 Randolph W. Hamerdinger

f

OUTPUT

The compact, continuous wave laser 10 is shown in the figure and comprises an outer metal housing 12, a molybdenum hollow cathode 14, housing 12 allowing heat generated in the cathode 14 to be dissipated into the outer environment, anode 16, a plurality of metal-to-ceramic seals 18, Brewster windows 20 and 22, a broadband high reflector mirror 24, a broadband transmitter mirror 26, auxiliary anodes 28 and 30 and a metal reservoir 32.

The glow discharge is directed into the active cathode area to assure uniform and effective excitation of the laser medium as shown in the figure. This discharge is also controllable.

The metal vapor from reservoir 32 is guided into the active cathode region and transported by natural diffusion through the cathode and condensed on the tube ends. Near uniform vapor density distribution along a short cathode region is assured.

Molybdenum cathode 14 allows higher temperature operation and lower sputtering contamination. The cathode has heat rejection members 15 extended to the envelope 12 to allow proper power dissipation to the outer environment. High power density input to the tube, therefore, becomes feasible resulting in a more compact tube structure. The auxiliary anodes provide an auxiliary discharge to protect the Brewster windows 20 and 22 from metal vapor...