Optical coupling device and optical coupling method using photonic crystal

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United States of America Patent

PATENT NO 6381389
SERIAL NO

09598316

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Abstract

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An optical coupling device for coupling optical waveguide devices having different spot sizes to one another includes photonic crystal having a modulation structure having a refractive index periodic at about the same interval as the wavelength of light used by the optical waveguide devices. The use of the photonic crystal allows the spot size of light at the emitting end of the photonic crystal to be converted into a different size from the spot size at the incident end of the photonic crystal.

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION7-1 SHIBA 5-CHOME MINATO-KU TOKYO 1088001 ?1088001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kosaka, Hideo Tokyo, JP 19 443

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