Method for manufacturing distribution type reflective optical fiber
A technology of distributed reflection and manufacturing method, which is applied in the field of manufacturing distributed reflective optical fiber, can solve the problems of long optical fiber and low Rayleigh reflection efficiency, and achieve the effect of simple manufacturing process and low cost
Active Publication Date: 2015-01-21
四川天府江东科技有限公司
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Problems solved by technology
At present, distributed optical fiber sensing and open fiber lasers can be obtained based on the Rayleigh reflection naturally existing in the fiber itself, but due to the low efficiency of Rayleigh reflection, a particularly long optical fiber is required in the application process
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[0017] Such as figure 1 As shown, the device for realizing the present invention includes a common single-mode optical fiber 1 with a length of 1000 meters, an optical fiber mobile platform 2 with a control system, the first optical fiber winding device 3, the second optical fiber winding device 4, the first A fiber positioning device 5, a second fiber positioning device 6, a femtosecond laser 7 with an output wavelength of 800nm, and an optical focusing device 8.
[0018] The method for specifically realizing the distributed reflective optical fiber comprises the following steps:
[0019] (1) Put a section of ordinary single-mode optical fiber 1 into the first optical fiber winding device 3 and the second optical fiber winding device 4; a part of ordinary single-mode optical fiber 1 passes through the first optical fiber positioning device 5 and the second optical fiber positioning device 6 is positioned above the optical fiber mobile platform 2 with its own control system; ...
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The invention discloses a method for manufacturing a distribution type reflective optical fiber. An optical focusing device is adjusted, and therefore light output by a laser device is focused on a fiber core of an ordinary monomode optical fiber arranged above an optical fiber moving platform. The output power of laser device is adjusted to be W; the optical fiber moving platform controls two optical fiber winding devices to move, the static time of the ordinary monomode optical fiber above the optical fiber moving platform is T, and then the ordinary monomode optical fiber moves for the distance of delta L in one direction, and the repeated motion is carried out until processing of a whole common monomode optical fiber is completed. The distribution type reflective optical fiber manufactured through the method can be applied to the fields of distribution type optical fiber sensors, open type optical fiber laser devices and the like. The method has the advantages of being low in cost, simple in manufacturing technology and the like.
Description
technical field [0001] The invention belongs to the technical field of optical fibers, and in particular relates to a manufacturing method of a distributed reflection optical fiber. Background technique [0002] The invention of optical fiber has greatly changed people's way of life and social production. Optical fiber communication system has become an important support of our current information society and the cornerstone of information transmission; optical fiber sensing technology has become one of the most important sensing technologies in the engineering field, and has been widely used in machinery, petrochemical, construction, high-speed rail, bridges , Biology, medicine, aerospace, aviation, defense industry and other fields. In addition, optical fibers are also used in lasers, lighting and other fields, making important contributions to the progress of human society. At present, people have been able to make a variety of optical fibers, including the most commonl...
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Inventor 陈达如王晓亮彭保进
Owner 四川天府江东科技有限公司