Solid-state laser device with diffused-light excitation, and int

Details Solid-state laser device with diffused-light excitation, and int Solid-state laser device with diffused-light excitation, and int

1995-11-09

1997-04-01

Davie, James W.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

H01S 3093

Patent

active

056174420

ABSTRACT:
In a laser device having a solid-state laser medium of a slab or rod-shaped crystal, a flash lamp serving as an excitation-light source for the laser medium, and a reflector made of a foamed quartz glass for injecting light produced by the light source into the laser medium, an insulator made from a foamed glass is utilized to improve the efficiency of light injection and the resulting beam quality. In addition, where the laser medium is doped with Nd.sup.3+, a wavelength conversion filter made of a material doped with Cr.sup.3+ or Ti.sup.3+ is utilized to convert most of the excitation light into a wavelength most suitable for exciting the laser medium. Foamed quartz glass is preferred also as the material for the inner surface of an integrating sphere for optical measurement.

REFERENCES:
patent: 4839902 (1989-06-01), Guch, Jr.
patent: 4989215 (1991-01-01), Winik
patent: 5134626 (1992-07-01), Oda et al.

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