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US 5,859,945 AGranted
Array type light emitting element module and manufacturing method therefor
AssigneeSumitomo Electric Industries, Ltd.
InventorsTakashi Kato, Masakazu Shigehara
Life of this patent
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Abstract
An array type light emitting element module having a plurality of light emitting elements, a plurality of optical fibers (2) being placed in a one-to-one correspondence with the light emitting elements (1) so as to receive light emitted therefrom on one end face, and diffraction gratings (2a) each having a specific diffraction wavelength which are formed in the optical fibers near the incident ends of the optical fibers (2).
Claims11
An array type light emitting element module comprising:
- a plurality of light emitting elements;
- a plurality of optical fibers placed in a one-to-one correspondence with said plurality of light emitting elements so that each fiber receives light emitted from its respective light emitting element on one end face thereof;
- and
- a plurality of diffraction gratings, each having a specific diffraction wavelength and each being formed in a respective one optical fiber of said plurality of optical fibers,
- wherein said plurality of diffraction gratings are formed proximate to incident ends of said optical fibers, and
- a first diffraction wavelength of at least one of said diffraction gratings differs from a second diffraction wavelength of at least a second one of said diffraction gratings.
3 more elements
Dependencies are inferred from the claim text.