Device for preparing polarization-maintaining fiber array and method of using the same

Abstract

The invention discloses an apparatus for manufacturing a polarization maintaining fiber array and an application method thereof. The apparatus comprises a clamp, foam, a hand-operated revolving stage, a first microscope and a second microscope. The clamp is arranged to be opposite to the hand-operated revolving stage. The foam is positioned between the clamp and the hand-operated revolving stage. The foam is provided with several slits. A V-groove substrate is installed on the clamp. The V-groove substrate is provided with V grooves corresponding to the slits. The first microscope is arranged in front of the V-groove substrate, and an optical axis of the first microscope is parallel to the V grooves. The second microscope is arranged above the V-groove substrate, and an optical axis of the second microscope is perpendicular to the V grooves. According to the invention, through the slits arranged in the foam and the V-grooves arranged in the V-groove substrate, the center-to-center spacing of the polarization maintaining fiber array is made to be precise. When a polarization axis of the polarization maintaining fiber array is adjusted, a mode of combining foam coarse adjustment and hand-operated revolving stage fine tuning is adopted, and rotation of a polarization maintaining fiber is observed through the first microscope, so that cost is saved; rotation angles can be accurately controlled; and the precision of the position of the polarization axis of the polarization maintaining fiber can be ensured.

Description

technical field [0001] The invention belongs to the technical field of optical fiber sensing and optical fiber array production, and in particular relates to a device for preparing a polarization-maintaining optical fiber array and an application method thereof. Background technique [0002] With the vigorous development of optical communication, the production of optical waveguide devices has a trend of small size and integration. The centers of the waveguide channels are arranged in a straight line at a fixed distance. For the coupling between the high-precision optical waveguide array and the optical fiber, It is impossible to use the method of connecting a single fiber to the waveguide to achieve the connection. To make each channel have the best coupling rate when the fiber array is connected to the waveguide array, the center distance of the fiber array must have very high precision. The fiber array It has a wide range of applications in integrated optical devices, opt...

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Problems solved by technology

[0003] However, with the current production equipment, it is difficult to accurately determine the center distance of the fiber array and the position of the polarization axis, and the quality of the produced polarization-maintaining fiber array is difficult to guarantee, and the equipment is complicated and inconvenient to use

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