Distributed optical fiber monitoring pre-buried groove

Abstract

The invention discloses a distributed optical fiber monitoring pre-buried groove, and particularly relates to the technical field of optical fiber pre-buried grooves. The distributed optical fiber monitoring pre-buried groove comprises a pre-buried groove body. A fixing mechanism is arranged inside the pre-buried groove body, and extends out of the top of the pre-buried groove body. The fixing mechanism comprises a bolt. The bolt is arranged on the top of the pre-buried groove body, a nut is arranged outside the bolt, and the nut is connected with the bolt through threads. According to the distributed optical fiber monitoring pre-buried groove, by means of the design of the fixing mechanism, an optical fiber can be limited through structures such as a first spring, when the first spring conducts pre-tensioning, limiting and fixing operation on the optical fiber, the stress of the optical fiber is small and uniform, the phenomenon that the optical fiber deforms due to the fact that thebolt too tightly presses the optical fiber can be avoided, the normal transmission of signals inside the optical fiber is guaranteed, the problems that due to the fact that the optical fiber is not fixed, the optical fiber is prone to being disturbed by the external environment and the construction, and signal transmission is affected are solved, and therefore the working performance of the optical fiber in the full life cycle is improved.

Description

technical field [0001] The invention relates to the technical field of optical fiber embedded grooves, in particular to a distributed optical fiber monitoring embedded groove. Background technique [0002] The dielectric waveguide that transmits light waves. The optical fiber is a kind of fiber composed of two layers of transparent media that form concentric circles. The most widely used dielectric material is quartz glass. The inner layer of the medium is called the core, and its refractive index is higher than that of the outer layer ( It is called the cladding), and the refractive index of the core or cladding is adjusted by doping germanium, phosphorus, fluorine, boron and other impurities in the quartz glass. The transmission wavelength of the optical fiber for communication is mainly near-infrared light with a wavelength of 0.8 to 1.7 microns. The core diameter of the optical fiber varies depending on the type, usually a few microns to 100 microns, and the outer diamet...

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Problems solved by technology

[0005] To this end, the embodiment of the present invention provides a distributed optical fiber monitoring pre-embedded groove. Through the design of the fixing mechanism, the optical fiber can be limited by structures such as the first spring. At the same time, the design of the first spring makes the first spring in the When the optical fiber is limited and fixed, the force on the optical fiber is small and uniform, and the optical fiber will not be deformed because the bolt is pressed too tightly, which ensures the normal transmission of the internal signal of the optical fiber and avoids the failure of the light to be fixed and limited. In order to solve the problem that the optical fiber is easily affected by external interference and affect the propagation of the signal, when the embedded groove in the prior art is used, most of the optical fiber is directly placed inside the embedded groove, and the light is not controlled. Fixed and limited, resulting in the problem that the optical fiber is easily affected by the interference of the external environment and construction, which affects the propagation of the signal, thereby improving the working performance of the optical fiber in the entire life cycle

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