OPTICAL WAVEGUIDE AND METHOD FOR MANUFACTURING SAME

An optical waveguide provided and includes: a core forming layer with a high refractive index; and a first clad layer with a low refractive index, bonded to a first main surface of the core forming layer. The core forming layer is provided in its plane direction with a core portion, lateral clad por...

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Bibliographic Details
Main Authors KONDOU, Naoyuki, MAEDA, Shingo, NAKASHIBA, Toru, KURIZOE, Junko
Format Patent
LanguageEnglish
Published 17.09.2020
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TRANSMISSION
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Summary:An optical waveguide provided and includes: a core forming layer with a high refractive index; and a first clad layer with a low refractive index, bonded to a first main surface of the core forming layer. The core forming layer is provided in its plane direction with a core portion, lateral clad portions each having one side adjacent to a corresponding side of the core portion, and high refractive index portions each adjacent to the other side of a corresponding one of the lateral clad portions. The core portion is provided in its plane direction with a central region, and GI regions in each of which a refractive index continuously decreases from the central region toward an interface with the corresponding one of the lateral clad portions. The lateral clad portions each include a region having a constant refractive index.
Bibliography:Application Number: US201816759637