OPTICAL WAVEGUIDE AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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app pub date -
Jul 19, 2016
filing date -
Jan 11, 2012
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Abandoned
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Abstract
The optical waveguide includes: a lower clad layer, a core layer, an upper clad layer, a substrate, and a mirror, the lower clad layer, the core layer, and the upper clad layer being sequentially laminated to the substrate, the mirror being formed on the core layer, in which the substrate has an opening, the maximum diameter of the opening is larger than that of luminous flux reflected by the mirror, and the maximum diameter of the opening is 240 μm or less. The optical waveguide is capable of transmitting a light signal regardless of the type of the substrate, suppressing the spread of a light signal reflected from the mirror, and transmitting a light signal with a low optical transmission loss.
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