Optical fiber ring winding method

Abstract

The invention relates to an optical fiber ring winding method, comprising the following steps: the needed length of an optical fiber is computed and the optical fiber with the computed length is measured, and enough optical fiber pigtails are left at two ends of the optical fiber; end point marks at two end points of the optical fiber with the computed length are made, and the position of a middle point between two end points of the optical fiber is used as a midpoint mark; linear mark is made on the external circumferential surface of a left wall of a framework along the axis direction of the framework; the optical fiber is clung to the innermost part of the inner side of the left wall of an optical fiber ring in a manner that the optical fiber is vertical to the axis of the framework, and the midpoint mark of the optical fiber is aligned to the linear mark of the framework; the optical fiber is wound by adopting a bipolar symmetrical winding method, a dour-pole symmetrical winding method or an eight-pole symmetrical winding method until the optical fiber at the front half part and the optical fiber at the rear half part are wound at the respective end point mark positions; the two optical fiber pigtails are led out of the framework and are fixed. The method solves the technical problem that the existing optical fiber winding method can not strictly ensure the optical fiber to be aligned to the midpoint position, and reduces the whole temperature coefficient of an optical fiber gyro.

Description

technical field [0001] The invention relates to an optical fiber winding method, in particular to a point-symmetrical winding method for an optical fiber ring. Background technique [0002] The quadrupole symmetrical winding method of the optical fiber ring can better reduce the influence of non-reciprocity, and it is relatively easy to realize. Most of the existing optical fiber rings belong to this winding method. The characteristic of this winding method is that the four-layer optical fiber coil is a cycle, and the symmetrical part of the midpoint of the optical fiber is in a close position in structure, such as figure 1 shown. The temperature-time gradient experienced by the symmetrical parts of the midpoint in the figure is quite close at the same time. If the thermal disturbances on the two sections of fiber symmetrical to the midpoint of the fiber are the same, the phase error caused by heat will be canceled out, which is exactly the choice The basis for the winding...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a fiber optic wrapping method, which solves the technical problem that the existing fiber optic wrapping method cannot strictly guarantee the position of the center point of the fiber

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