Before the fusion of the optical fiber fusion splicer, according to the material and type of the optical fiber, the key parameters such as the pre-melting main melting current and time and the fiber feeding amount are set. During the welding process, the “V” shaped groove, electrode, objective lens, welding chamber, etc. of the welding machine should be cleaned in time. Observe the presence or abs...

The first is to introduce the difference between multimode fiber and single mode fiber: Multimode fiber The optical signal in multimode fiber propagates through multiple channels; it is usually recommended to be used when the distance is less than miles. The effective distance of multimode fiber from transmitter to receiver is about 5 miles. The usable follow-up is also affected by the type and qu...

1. Simple judgment of fiber quality: Under normal circumstances, the slope of the main body of the light curve (single disk or several optical cables) tested by OTDR is basically the same. If the slope of a certain section is large, it indicates that the attenuation of this section is large; if the main body of the curve is of irregular shape, the slope fluctuation is large. Bending or arcing indi...

According to the transmission mode of light in the fiber, it can be divided into: single-mode fiber and multi-mode fiber. The core diameter of the multimode fiber is 50-62.5μm, the outer diameter of the cladding is 125μm, the core diameter of the single-mode fiber is 8.3μm, and the outer diameter of the cladding is 125μm. The working wavelength of the optical fiber has short wavelength 0.85μm, lon...

Photoelectric composite cable refers to a transmission line suitable for broadband access network systems. It is a new type of access method. It integrates optical fiber and copper wire for power transmission. It can solve the problems of broadband access, equipment power consumption, and signal transmission. structure Photoelectric composite low-voltage cables (referred to as photoelectric compos...