Method and device for microprocessing rotary optical fiber

Abstract

The invention provides a method and a device for microprocessing rotary optical fiber. An adjustable-speed driving motor of the device arranged on a base drives an optical fiber clamp to rotate through a variable-speed phase changer, the optical fiber simultaneously passes through the optical fiber clamp and an optical fiber positioning device, the optical fiber clamp drives the clamped optical fiber to rotate, the processed region of the optical fiber is positioned in the center of the optical fiber positioning device, and is exposed to an external processing source through a processing window, and the processing source is laser or focused ion beams. The deice can control the rotation drifting of the rotary optical fiber within a range of 2 micrometers, has the characteristics of simple assembly, easy operation, high precision and low drifting, and can be used for microprocessing under a high-precision microscope. The invention belongs to the field of laser microprocessing.

Description

technical field [0001] The invention relates to a method and device for micromachining a rotating optical fiber, which is mainly used in the axisymmetric micromachining of the optical fiber and the micron-level fine processing of the surface of the rotating optical fiber. By adopting the device of the present invention, various structures such as symmetrical holes, through holes of various shapes, annular grooves, and spiral grooves can be processed on the optical fiber by using technologies such as external lasers or ion beams. Background technique [0002] Optical fiber sensor is a very potential research field born with the widely used communication optical fiber. Optical fiber has multiple advantages such as intrinsic insulation, anti-electromagnetic interference, wide operating frequency, and integration of transmission medium and sensor head. Fiber optic sensors include transmission and sensing fibers. The former uses the optical fiber simply as the transmission medi...

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Problems solved by technology

[0003] However, the diameter of the standard communication optical fiber after removing the coating layer is only 125 microns. If the precision of the rotating device is not high enough, rotational drift will occur. For laser processing, the drift of tens of microns will seriously affect the surface of the optical fiber. processing

However, there is no record of a device for constraining the rotational drift of the spun fiber

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