It is mainly composed of a fiber core, an insulating layer and a coating layer; the fiber core is made of relatively highly transparent raw materials; the refractive index of the insulating layer is slightly lower than that of the fiber core, which leads to an optical waveguide effect, making the Most of the magnetic field is confined in the core and transmitted; the function of the coating layer is to protect the metal from corrosion by water vapor and abrasion by mechanical equipment, while improving the flexibility of the metal.

The key method of single-mode fiber optic cable connection is to fix the connection. It is suitable for permanent connection between single-mode optical fiber and single-mode optical fiber cable in optical cable route. The characteristics are that the loss of the connector is small, the impact toughness is high, and the equipment must be welded.

Links to themed events. It is suitable for single-mode and single-mode optical cables and the connection between the software equipment of the transmission system and the instrument panel. It is mainly connected according to the optical connection power plug. The characteristics are that the connector is flexible and good, the replacement of the connection point is convenient, and the loss and reflection surface are relatively large, which is not enough for this type of connection method. The insertion loss level is also very good, a few dozen pieces are enough, you can buy the finished product immediately, if you want a single piece, you must also have an inner hole polishing and grinding equipment, that one is too expensive, it is recommended to buy it immediately Leaky line.

Temporary connection. This method is generally used to measure the coupling connection between the fiber pigtail and the single-mode optical fiber and single-mode optical cable under test. The characteristics are convenience, flexibility, low cost, and low requirements for loss. This method is often used for temporary measurement.