Fiber macrobend loss test method and test system
A technology of optical fiber macrobending and testing system, which is applied in the direction of testing optical performance, etc., to achieve the effects of stable state, easy operation and reasonable design
Inactive Publication Date: 2016-09-21
ZHONGTIAN TECH FIBER OPTICS
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Problems solved by technology
However, there is no test instrument specially used to test the macrobend loss of multimode fiber in the market.
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[0029] figure 1 Middle: 1. It is the light source control module and the light source. The light source control module realizes the control of the light source module through the computer to realize the switching between different wavelengths; 2. It is the optical power communication module and the optical power meter, which is used for the detection of optical power and the different Switching between the measured wavelengths; 3. It is a power supply module and a communication module, which is mainly realized through the control board, which can ensure the stability of the power supply voltage to protect the continuous operation of the light source. It is also equipped with two communication modules, one for realizing Optical power communication, the other module is to provide data transfer; 4, as a mode controller, used to control the stability of the injection mode and the limitation of the mode, to ensure the accuracy of the test results; 5, for the transfer of communicatio...
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The invention relates to a fiber macrobend loss test method and test system. The fiber macrobend loss test system is formed by a fiber macrobend loss test instrument and a computer, wherein the fiber macrobend loss test instrument comprises a light source control module, an optical switch controller, a light source communication interface, an optical power communication module, an optical power meter, a mode controller and an external port; the computer includes a computer host and a display; the fiber macrobend loss test instrument is provided with an instrument housing; the light source control module, the optical switch controller, the light source communication interface, the optical power communication module, the optical power meter, the mode controller and the external port are arranged in the instrument housing; the light source control module is connected with the optical switch controller through a fiber patch cord; the light source control module and the optical switch controller are arranged at the left front side in the equipment; the light source communication interface is arranged at the central position of the equipment; the light source communication interface and the optical power meter are arranged at the right front side of the equipment; the mode controller is arranged at the upper part of the equipment; and the external port is arranged at the back of the equipment.
Description
technical field [0001] The invention relates to an optical fiber macrobending loss testing method and testing system. Background technique [0002] When the optical fiber is made into an optical cable and the optical cable is laid and used, there will be a bending loss introduced. Macrobend loss refers to the loss caused by the bending of the entire fiber axis. The beam in the straight or flat part of the fiber forms a critical propagation angle with the axis of the fiber; however, the propagation angle formed by the same beam hitting the boundary of the curved part of the fiber is greater than the critical value. The result is that the conditions for total internal reflection are not met in a bent fiber, which means that part of the beam escapes from the fiber's core. Therefore, the optical power reaching the destination is less than the optical power emitted from the light source when it enters the fiber. The loss of optical power will occur after the optical fiber is b...
Claims
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IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 胡继刚刘志忠曹珊珊吴磊薛鹏鹏
Owner ZHONGTIAN TECH FIBER OPTICS