OPTICAL TRANSMISSION APPARATUS AND OPTICAL WAVEGUIDE

PROBLEM TO BE SOLVED: To provide an optical transmission apparatus that can be easily manufactured compared with a case of using an additional component or a specially designed element. SOLUTION: The optical transmission apparatus includes a light receiving element 2 for receiving light and an optic...

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Bibliographic Details
Main Authors SAKAI KAZUHIRO, SAKAMOTO AKIRA, SUGIBUCHI DAIKI, MUKOYAMA NAOTAKA
Format Patent
LanguageEnglish
Published 03.06.2010
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide an optical transmission apparatus that can be easily manufactured compared with a case of using an additional component or a specially designed element. SOLUTION: The optical transmission apparatus includes a light receiving element 2 for receiving light and an optical waveguide 6 having a core 3, a cladding 4 adjacent to the core 3, and a light-diffusing recessed part 5 formed in the cladding part for emitting light toward the light receiving element 2. The recessed part 5 diffuses a light beam through a concave lens effect to irradiate the light receiving face 21 of the light receiving element 2 with the light beam. The spot diameter emitted to the light receiving face 21 can be changed by adjusting the radius of curvature of the recessed part 5. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20080298256