Patent · US Active

Optical coupling structure, system and method for preparing optical coupling structure

US11513295B2 · kind B2 · utility

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10Claims

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Assignee

INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

Lin Yang · Shanghai, CN
Shanglin Yang · Sunnyvale, US
Lei Zhang · Nanhu, CN

Key dates

Filing date	Dec 13, 2018
Grant date	Nov 29, 2022
Priority date	—
Expiry date	Dec 13, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/1204
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical coupling structure, an optical coupling system and a method for preparing the optical coupling structure are provided. The method includes: step S101: preparing a base substrate; step S102: forming a lithium niobate optical waveguide on the base substrate; step S103: forming a silicon dioxide core layer enclosing the lithium niobate optical waveguide on peripheral walls of the lithium niobate optical waveguide; step S104: forming a silicon dioxide cladding layer enclosing the silicon dioxide core layer on peripheral walls of the silicon dioxide core layer. The optical coupling structure alleviates a technical problem of low coupling efficiency between the lithium niobate optical waveguide and the single-mode optical fiber in the related art, and achieves a technical effect of improving the coupling efficiency between the lithium niobate optical waveguide and the single-mode optical fiber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.