An optical fiber adjustable clamp

Abstract

The invention belongs to the field of optical fiber clamps, and in particular discloses an adjustable optical fiber clamp. The invention has a structure with arbitrary adjustment capabilities in the XY plane, and can clamp double-clad optical fiber sleeves. The main part is a concave base and a double-convex base placed up and down; the upper half of the base is provided with a V-shaped groove that can clamp the glass sleeve and the corresponding fixing and protection components; a built-in spring at the connection of the two bases, The two ends of the spring are respectively fixed on the lower surface of the upper base and the upper surface of the lower base. Cooperating with the screw micrometer to apply fine-tuning thrust to the upper part of the base, the relative displacement difference between the upper and lower parts of the base can be generated, and a pair of clamps can be used together to realize arbitrary adjustment of the optical fiber in the XY plane. The invention can adapt the diameter of double-clad large-mode-field optical fiber, eliminates the influence of the refractive index mismatch problem caused by the cylindrical structure of the optical fiber itself, and improves the laser processing precision.

Description

Technical field[0001]The present invention belongs to the field of fiber clamps, and more particularly to an optical fiber adjustable clamp.Background technique[0002]Flying second laser processing utilizes light and transparent substances to make material modification, in terms of micro-numeral, optical waveguide devices, fiber optic devices, and have a wide range of application prospects in emerging fields such as optical storage. The femtosecond laser is a machining full-optical fiber device, such as an effective technical means of the F-P resonant cavity, miniature channel, and raster device, and can even be partially positioned in the fiber core in its precision machining.[0003]Fiber is a cylindrical medium waveguide that consists of three parts: core, cladding and coating layer. Ordinary single mode, less mold fiber core has a diameter of about 8 to 20 um, and the cladding diameter is 125 um. When the fiber is processed, the portion to be processed is generally stripped, and th...

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Problems solved by technology

[0005] In view of the defects of the prior art, the purpose of the present invention is to provide an adjustable fixture for double-clad large-mode-field optical fibers, aiming to solve the problem that traditional optical fiber fixtures cannot adapt to the diameter of double-clad large-mode-field optical fibers and the laser processing accuracy is not high. The problem

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