High reflectance laser resonator cavity

Coherent light generators – Particular resonant cavity

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372 33, H01S 308

Patent

active

048021865

ABSTRACT:
A ceramic pump cavity structure for use in solid state lasers wherein the pump cavity comprises sintered alumina having grain sizes of between about 0.3 to 0.5 microns. Sintered alumina pump cavities having grain sizes within this range provide desirable diffuse reflectivity comparable to barium sulfate while at the same time providing a structurally strong cavity which is resistant to cracking and breakage. Combinations of the alumina pump cavity with parasitic light absorbers such as samarium oxide are also disclosed.

REFERENCES:
patent: 3979696 (1976-09-01), Buchman
patent: 4032862 (1977-06-01), Huchital et al.
patent: 4096450 (1978-06-01), Hill et al.
Alcoa Chemicals Div.; "Product Data Calcined Aluminas"; CHE 920, Sep. 1985.

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