Graphene Coated Optical Fiber

Purpose and goal

An feasibility study with the purpose of verifying: (1) that it is technically possible to coat an optical communication fiber with a Graphene-based material and thereby improve the performance of the fiber (resistance to water / OH molecules, thermal / electrical conductivity). (2) Customer benefit and potential market potential for optical communication fiber coated with a Graphene-based material. We have completed the study as to plan, where Chalmers has contributed with material knowledge, RISE with expertise in fiber manufacturing, KTH and Bitelecom with market studies.

Expected results and effects

During this pre-study, several optical fibers have been made with various mixtures of carbon / Graphene in polyamide. The coating method seems promising but requires more development to produce fiber with good strength and relevant properties in order to fully evaluate the potential of these nano composite coatings. Commercial studies resulted in an increased understanding of the requirements of communication fiber, identification of potential customers, acceptance of the concept as such and proposals for future cooperation with one high volume potential customer.

Planned approach and implementation

This feasibility study aimed to test whether a naked optical commercial fiber could be coated with a coating of a Graphene-polymer mixture. Chalmers contributed with knowledge of Graphene and mixing methods, RISE provided the appropriate polymer and together with Chalmers performed the practical tests with surface coating. KTH and Bitelecom have contacted potential potential customers and manufacturers of fiber, have discussed a possible future cooperation with a large manufacturer in China, and have thus also verified customer benefit and market potential.