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Optical Fiber Transmission Loss

The reason why optical fiber replaces the long-distance transmission of the network cable is that optical fiber transmission has low loss, and its loss is mainly divided into the following: Loss is the loss of light energy caused by the absorption and scattering of the medium (air) and leakage (t... Read More

SFP module laser classification

The current lasers are: FBG, FB, DFB, etc., among which the most commonly used are FP and DFB two lasers FBG :Fiber Bragg Grating. FP: Fabry-Perot, Fabry-Perot laser diode DFB: Distributed Feedback Laser. For the mainstream commonly used FB, DFB. DFB’s laser is based on the FP laser using... Read More

Three parameters of an optical module

(1) Central wavelength The operating wavelength of the optical module is actually a range, but there is a more obvious difference between single mode and multi-mode. Then expressed, generally named according to the most central wavelength. The central wavelength is measured in nanometers (nm), Th... Read More

PON optical module and traditional optical module

According to the different categories of development time: Optical modules are classified into PON optical modules and traditional optical modules When using traditional optical modules: The optical signal transmission mode is point-to-point (P2P: that is, one to one), and the modules are used in... Read More

Classification of optical modules

Distinction between SFF/SFP/SFP+ and XFP optical modules If it is classified according to the type of package, PON optical modules can be divided into two types SFF optical module (this module is small in size, generally fixed, welded on a fixed PCBA, can not be removed and inserted, performan... Read More

What is a PON Module?

PON optical module is a high-performance optical module used in PON (passive optical network) system, also known as PON module, in line with ITU-T G.984.2 standard and multi-source protocol (MSA). It uses different wavelengths to send and receive signals between the OLT (optical line terminal) an... Read More