2D Optical Fiber Precision Positioning Coupler

Abstract

The two-dimensional optical fiber precision positioning coupler and its manufacturing method belong to the field of optical fiber coupling and connection device manufacturing. In order to solve the problem that the position of the optical fiber is fixed by means of mechanical clamps in the prior art and the positioning accuracy of the optical fiber is limited, the present invention inserts the optical fiber into two The nickel sheet is precisely positioned by the optical fiber, and is assembled with the nickel sheet positioning sheet, the positioning column and the coupler packaging protection shell, and the resin material is filled into the protective shell and the exposed fiber end for packaging; the accuracy of the fiber positioning microhole can be Reach sub-micron level or even higher, use multiple sets of positioning sheets to achieve high-precision positioning of the axial angular positioning accuracy of the two-dimensional fiber array, and use resin encapsulation to cure the two-dimensional fiber array to be permanently fixed, and the end face of the fiber array can be polished. Optical-level flatness; the two-dimensional fiber array coupler produced by this method can meet the requirements for coupling and connection with high-precision optical equipment such as two-dimensional lattice light sources, and the manufacturing process is simple, and it is easy to realize standardized production.

Description

Technical field [0001] The invention relates to a two-dimensional optical fiber precision positioning coupler and a manufacturing method thereof, and belongs to the field of manufacturing optical fiber coupling and connecting devices. Background technique [0002] The fiber coupler is a device that connects the optical fiber and the optical fiber, and the optical fiber and the optical system. It connects the beam and the optical fiber to maximize the coupling of light energy to the receiving fiber and improve the optical energy transmission efficiency of the entire optical fiber system. At present, optical fiber couplers generally use blind holes or V-shaped grooves to accommodate and fix the optical fiber. The use of blind holes requires a good control of the diameter of the blind hole to avoid the large blind hole diameter from causing the optical fiber to move in the blind hole, thereby affecting the optical fiber Positioning accuracy and coupling efficiency. The V-shaped gro...

AI Technical Summary

Problems solved by technology

[0005] An important feature of the current optical fiber array positioning method is that the position of the optical fiber is fixed by means of a mechanical fixture, so the final positioning accuracy of the optical fiber depends on the mechanical fixture of the optical fiber, and the processing accuracy of the mechanical fixture limits the final positioning accuracy of the optical fiber

Due to the inherent limitations of mechanical processing, it is difficult to obtain fiber arrays with high enough positioning accuracy to meet the requirements of continuously developing high-precision optical systems

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