Method for tailoring the dopant profile in a laser crystal using zone processing

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United States of America Patent

PATENT NO 9926644
SERIAL NO

14487295

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Abstract

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A lasing medium having a tailored dopant concentration and a method of fabrication thereof is disclosed. The lasing medium has a single crystal having a continuous body having a selected length, wherein the crystal comprises dopant distributed along the length of the body to define a dopant concentration profile. In one embodiment, the dopant concentration profile results in a uniform heating profile. A method of fabricating a laser crystal having a tailored dopant concentration profile includes arranging a plurality of polycrystalline segments together to form an ingot, the polycrystalline segments each having dopant distributed, providing a crystal seed at a first end of the ingot, and moving a heating element along the ingot starting from the first end to a second end of the ingot, the moving heating element creating a moving molten region within the ingot while passing therealong.

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Patent Owner(s)

Patent OwnerAddress
RAYTHEON COMPANY50 APPLE HILL DRIVE TEWKSBURY MA 01876

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Byren, Robert W Manhattan Beach, US 45 924

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