Optical fiber jumpers can be divided into common single-mode and multi-mode jumpers of silicon-based optical fibers according to different transmission media, and other optical fiber jumpers such as plastics; the structure of the connector can be divided into: FC Jumpers, SC jumpers, ST jumpers, LC jumpers, MTRJ jumpers, MPO jumpers, MU jumpers, SMA jumpers, FDDI jumpers, E2000 jumpers, DIN4 jumpers, D4 jumpers, etc. form. More common fiber jumpers can also be divided into FC-FC, FC-SC, FC-LC, FC-ST, SC-SC, SC-ST and so on.
Single-mode fiber Generally, the fiber jumper is indicated by yellow, and the connector and protective cover are blue; the transmission distance is long.
Multimode fiber: Generally, the fiber jumper is indicated by orange, and some are indicated by gray. The connector and cover are made of beige or black; the transmission distance is short.
ST/ST single mode fiber patch cord: The fiber jumper is similar to the coaxial cable except that there is no mesh shield. The center is the light-transmitting glass core. In a multimode fiber, the core has a diameter of 15 μm to 50 μm, which is roughly equivalent to the thickness of a human hair. The single-mode fiber core has a diameter of 8 μm to 10 μm. The outside of the core is surrounded by a glass envelope having a lower refractive index than the core to keep the fiber in the core. Next to it is a thin plastic jacket to protect the cable jumper classification.
Note on fiber use:
1 The optical transceivers at both ends of the fiber jumper must have the same wavelength. The short-wavelength optical module uses multimode fiber (orange fiber), and the long-wavelength optical module uses single-mode fiber (yellow fiber) to ensure data transmission accuracy.
2 After the fiber jumper is used, the fiber connector must be protected with a protective cover. Dust and oil will damage the coupling of the fiber.
3 If the fiber connector is dirty, you can use a cotton swab to clean the alcohol, otherwise it will affect the communication quality.
Fiber jumper features
Low insertion loss 2. Good repeatability 3. Large return loss 4. Good inter-plug performance 5. Good temperature stability
Fiber patch cord application:
Fiber patch cord products are widely used in: communication equipment room, fiber to the home, local area network, fiber optic sensor, fiber optic communication system, fiber optic connection transmission equipment, defense war preparation and so on. Applicable to cable TV networks, telecommunication networks, computer optical networks and optical test equipment. The subdivision is mainly applied to several aspects.
1. Optical fiber communication system 2. Optical fiber access network 3. Optical fiber data transmission 4. Optical fiber CATV 5. Local area network 6. Test equipment 7. Optical fiber sensor