Classification of optical fibers
The transmission point modulus categories are single-mode fiber (Mode Fiber) and multimode fiber (Multi-Mode Fiber). The core diameter of single-mode optical fiber is very small, and it can only transmit in a single mode at a given operating wavelength. It has a wide transmission frequency and a large transmission capacity. Multimode optical fiber is an optical fiber that can transmit in multiple modes simultaneously at a given operating wavelength. Compared with single-mode fiber, the transmission performance of multi-mode fiber is poor.
The transmission point modulus categories are single-mode fiber (Mode Fiber) and multimode fiber (Multi-Mode Fiber). The core diameter of single-mode optical fiber is very small, and it can only transmit in a single mode at a given operating wavelength. It has a wide transmission frequency and a large transmission capacity. Multimode optical fiber is an optical fiber that can transmit in multiple modes simultaneously at a given operating wavelength. Compared with single-mode fiber, the transmission performance of multi-mode fiber is poor.
There are three types of fiber optic connections. Outdoor Fiber Optic Cable First, they can be wired into connectors and plugged into fiber optic sockets. The connector loses 10% to 20% of the light, but it makes it easy to reconfigure the system.
It can be joined mechanically. cable adss The method is to place one end of two carefully cut optical fibers in a ferrule and then clamp them. The fiber can be adjusted through the joint to maximize the signal. Mechanical bonding takes about 5 minutes for a trained person to complete, and the light loss is about 10%.
Aerial Optic Fiber Cable Two optical fibers can be fused to form a solid connection. The fiber formed by the fusion method is almost the same as a single fiber, but there is a little attenuation. For all three connection methods, there are reflections at the junction and the reflected energy interacts with the signal.
