Optical transmission element

Abstract

An optical transmission element includes a substrate and at least one optical transmission module. The at least one optical transmission module is formed on the substrate. The at least one optical transmission module includes a first reflective layer, a light-emitting diode layer, and a second reflective layer. The first reflective layer is formed on the substrate. The light-emitting diode layer is formed on the first reflective layer, and the second reflective layer is formed on the light-emitting diode layer. A light-emitting region, an optical waveguide region, and a light-detecting region are defined and arranged sequentially along a transverse reference line. Each of the light-emitting region, the optical waveguide region, and the light-detecting region has the first reflective layer, the light-emitting diode layer, and the second reflective layer. Thereby, light emitted by the light-emitting diode layer of the light-emitting region is reflected between the first reflective layer and the second reflective layer, and guided to the light-detecting region through the optical waveguide region.

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