How to use multimode fiber

　　The use of multimode fiber involves many aspects, including determining fiber type and parameters, making fiber connections, selecting light sources, performing inspections and tests, and subsequent maintenance and maintenance. The following is a detailed description of the use of multimode fiber:

　　First, determine the fiber type and parameters

　　Select the appropriate multimode fiber type and parameters based on the specific application requirements. These parameters include core diameter, loss, bandwidth, etc. For example, for short-range applications such as local area networks, multimode fibers with larger core diameter and lower cost can be selected.

　　Second, carry out fiber optic connection

　　Connect the two ends of the multimode fiber to the fiber optic device or fiber optic connector to ensure that the connection is firm and not loose.

　　Connection method: Fiber optic connection can be carried out by welding, mechanical connection, etc. The welding method requires a professional welding machine, and the mechanical connection method uses a fiber optic connector.

　　Notes: When connecting, it is necessary to ensure that the core diameter, connection method and connection quality of the optical fiber meet the requirements to avoid excessive bending and distortion, so as not to affect the quality and performance of the optical fiber tranSMission.

　　III. Light source selection

　　Light source type: Multi-mode fiber light sources can choose LED light sources or lasers, etc. LED light sources are low-cost and suitable for short-distance, low-speed optical communication applications; while lasers are suitable for long-distance, high-speed optical communication applications.

　　Light source parameters: It is necessary to select the appropriate light source power and wavelength parameters to ensure that they match the transmission performance of the multimode fiber.

　　IV. Conduct inspection and testing

　　Multimode fiber is inspected and tested using optical power meters, spectrometers and other testing equipment to ensure that the quality and performance of fiber transmission meet requirements. These tests can include loss testing, bandwidth testing, etc.

　　V. Carry out maintenance and upkeep

　　Cleaning the fiber: Regularly clean the multimode fiber, such as removing dust, dirt, etc., to ensure the quality and performance of the fiber transmission.

　　Check the connection: Regularly check whether the fiber optic connection is firm, free of looseness or damage, and replace or repair any problems promptly.

　　Avoid excessive bending: The bending radius of multimode fiber is large, usually about 10 times the diameter of the fiber. It is necessary to avoid excessive bending and twisting to avoid affecting the quality and performance of fiber transmission.

　　Application scenarios

　　Multimode fiber is widely used in short-distance, low-speed, low-bandwidth optical communication fields, such as local area networks, data centers, video surveillance, etc. At the same time, it is also used in medical, industrial, military and other fields, becoming one of the indispensable important equipment in modern informatization construction.

　　In summary, the use of multimode fiber needs to be selected and operated according to specific application needs and equipment requirements. At the same time, attention needs to be paid to the connection, detection, maintenance and maintenance of fiber optics to ensure the quality and performance of fiber optic transmission.