Coherent light generators – Optical fiber laser
Patent
1992-09-14
1994-01-04
Epps, Georgia Y.
Coherent light generators
Optical fiber laser
385 15, 385 31, 385 39, 385 49, 606 37, H15
Patent
active
052766934
ABSTRACT:
A thin layer of a material having a refractive index that varies non-abruptly between the refractive indexes of a first element and a second element in an optical device significantly reduces Fresnel losses in transmitting light from the first element into the second element. The layer is readily created by either an ion beam mixing process or by an ion beam enhanced deposition (IBED) process, forming a region of non-abruptly varying refractive index in one of the elements at an interface therebetween. A selected material is thus securely bonded into the laser light-receiving element which may conveniently be made of a material such as YAG, silica, sapphire, zirconia, quartz, silicon, germanium, zinc sulfide or zinc selenide, depending on the application at hand. In another aspect of this invention, the tip element is provided with an additional layer over the first layer to provide added protection thereto.
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Deutchman Arnold H.
Long Gary
Epps Georgia Y.
Laser Centers of America
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