Fiber-based continuous optical beat laser source to generate terahertz waves using lithium niobate crystal embedded in the fiber

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United States of America

PATENT NO 11276979
APP PUB NO 20210066876A1
SERIAL NO

16555128

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Abstract

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A continuous optical beat laser element for generating terahertz (THz) waves and a laser source using same includes periodically poled lithium niobate (ppLN) crystals arranged along a predetermined direction forming a surface generally parallel to the predetermined direction. A Ti diffused region is applied on the surface and an array of gold nanowires are applied on the Ti diffused region to form a gold metal-insulator-metal (MIM) element that optimizes coupling and channeling of THz radiation from the crystals into the gold nanowires. The system provides a simple, stable, compact and cost-effective THz source using a widely tunable C-band SOA-based laser to excite a non-linear photo-mixer to produce terahertz radiation that ranges from 0.8 to 2.51 THz at room temperature. This laser source can be modified into an all fiber-based THz generator by embedding ppLN crystals in a fiber filament configuration resulting in less absorption and producing high output power.

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Patent Owner(s)

Patent OwnerAddress
UMMY MUHAMMAD ALINEW HYDE PARK NY

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Inventor Name Address # of filed Patents Total Citations
Ummy, Muhammad Ali New Hyde Park, US 3 7

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