Two-dimensional V-groove-free optical fiber array device and manufacturing method thereof

Abstract

The invention discloses a two-dimensional V groove-free fiber array apparatus and a manufacturing method thereof. The fiber array apparatus comprises a substrate, a cover plate and M*N fibers, wherein the N expresses the number of fiber layers and M expresses the number of fibers in each layer of fiber array; and the number of fibers in each two adjacent layers of fiber arrays are equal. The substrate and the cover plate are flat plates. The 0-layer fiber array serving as a bottom layer is fixed at the substrate; fibers of the Sth-layer fiber array are fixed in grooves that are formed among adjacent fibers in the (S-1)th-layer fiber array and thus the fibers of the Sth-layer fiber array and the fibers of the (S-1)th-layer fiber array are staggered and are tangent, wherein the S is equal to 1, 2, ...or N. According to the invention, with the two-dimensional V groove-free fiber array apparatus, the expensive substrate with a V-shaped groove is not required, thereby substantially lowering the batch production cost of the fiber arrays; the spatial size between the substrate and the cover plate is effectively used; the fiber array density is improved; and the two-dimensional V groove-free fiber array apparatus is the great important application to the beam shaping technology and the planar optical waveguide technology.

Description

technical field [0001] The invention relates to the fields of optical communication devices and optical imaging, in particular to a two-dimensional V-groove-free optical fiber array device and a manufacturing method thereof. Background technique [0002] Many optical fibers are arranged in a certain order to form the required geometric shape, forming a fiber array (FiberArray, FA) device. The arrangement positions of the optical fibers at both ends of the array correspond one by one, one optical fiber in the array is equivalent to one pixel, and the light image at one end of the optical fiber array will be reproduced at the other end of the array. Various fiber optic endoscopes in medicine are made based on this principle. Optical fiber array devices are mainly used to directly transmit images, and are used in planar optical waveguides, arrayed waveguide optical fibers, active / passive array optical fiber devices, micro-electromechanical systems, and multi-channel optical mo...

AI Technical Summary

Problems solved by technology

[0004] With the development of science and technology, the imaging effect and resolution of traditional single-layer optical fiber array devices have been difficult to meet the requirements of optical imaging technology.

However, in the current two-dimensional optical fiber array device and its manufacturing method, the V-shaped grooves arranged on the substrate are used, and the method of reducing the optical fiber layer layer by layer is adopted to finally form a trapezoidal or triangular optical fiber array, which cannot effectively use the space volume, thereby affecting its performance. Applications in beam shaping and planar optical waveguides

Moreover, the price of the V-groove is relatively expensive, resulting in a substantial increase in mass production costs

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