Heat-insensitive planar optical waveguide and preparation method thereof

Abstract

The invention discloses a heat-insensitive planar optical waveguide and a preparation method thereof. The planar optical waveguide comprises a substrate layer and a core layer, wherein the core layer is formed on the substrate layer. The planar optical waveguide further comprises an upper cladding wrapping the periphery of the core layer. The material of the upper cladding comprises an UV convergent fluorinated polymeric material. The materials of the substrate layer and the core layer are organic optical materials. The heat-insensitive planar optical waveguide provided by the invention has the advantages of small optical transmission loss and high capability in resisting electromagnetic waves and the like.

Description

technical field [0001] The invention relates to the field of optical waveguide devices, in particular to a thermally insensitive planar optical waveguide and a preparation method thereof. Background technique [0002] An optical waveguide is a dielectric device that guides light waves to propagate in it, also known as a dielectric optical waveguide. There are two types of optical waveguides: one is integrated optical waveguides, including planar (film) dielectric optical waveguides and strip dielectric optical waveguides, which are usually part of optoelectronic integrated devices (or systems), so they are called integrated optical waveguides ; The other is a cylindrical optical waveguide, usually called an optical fiber. [0003] The transmission of light in the optical waveguide is greatly affected by external factors such as temperature, which will affect the stability of the optoelectronic integrated device (or system) made by using the optical waveguide. Therefore, the...

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