A fiber optic filter device

Abstract

The invention discloses an optical fiber filtering device which has functions of actively filtering light noises and uniformly and effectively heating internal disc winding parts. The optical fiber filtering device structurally comprises an optical fiber wire, an optical fiber box, a heating sheet, heat insulation cotton and a heat-conducting silicon gel sheet, wherein the optical fiber box is internally provided with an external disc winding part and an internal disc winding part; the external disc winding part is provided with a storage space for storing the 100m-150m optical fiber wire in a winding manner; after the optical fiber wire is wound for 100m-150m through the external disc winding part, the optical fiber wire enters the internal disc winding part; the internal disc winding part covers the heat insulation cotton; the heat-conducting silicon gel sheet is attached on an inner wall of the heat insulation cotton; the heating sheet is laid between the heat insulation cotton and the heat-conducting silicon gel sheet; after the optical fiber wire is wound in the internal disc winding part, the optical fiber wire is led out of the optical fiber box; and in a winding process, a wire disc formed by the optical fiber wire is in contact with the heat-conducting silicon gel sheet and is uniformly distributed relative to the heat-conducting silicon gel sheet. The optical fiber filtering device has the technical advantages that the heat preservation performance is good after heating, and light pulse with signal interference, caused by the fact that a laser device is started and stopped, can be effectively shielded.

Description

technical field [0001] The invention relates to the technical field of optical fiber filtering, in particular to an optical fiber filtering device. Background technique [0002] The optical fiber in the prior art will carry some optical noise signals due to external influences during signal transmission, and these optical noise signals will affect the clarity of the optical fiber signal during transmission. In order to solve this technical problem, the method of installing a noise filter device at the initial end of optical fiber transmission is adopted in the prior art to achieve the technical effect of reducing optical noise as much as possible. Although the above structure can filter out optical noise to a certain extent, the noise filtering effect still needs to be further improved. The residual optical noise signal still has a certain influence on the transmitted signal, and this effect is more prominent when the laser works instantaneously. . Furthermore, the optimum...

AI Technical Summary

Problems solved by technology

In the prior art, the heating device installed in the noise filter device needs to use air radiation to transfer heat, the heating speed is very slow and uneven, and it is difficult to maintain the stable and normal operation of the optical fiber in harsh environments. The transmitted signal is attenuated so that the signal is distorted

In addition, when the laser is turned on instantly, a strong optical noise signal will be generated, which will further affect whether the optical fiber signal can be transmitted stably when passing through the heated part of the optical fiber, and then whether the signal receiving end can obtain correct and complete transmission of information affects

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