In optical fiber, data is transmitted over long distances at high speed in the form of light pulses, or signals. Optical modules convert existing electrical signals into optical signals, which is why they are important devices in the network.
Introduction to Fiber Optic Modules
Optical modules mainly include single-fiber optical modules and dual-fiber optical modules.
Single Fiber Module: In this device, the transmission and reception of data occurs over a single optical fiber. Therefore, it is bi-directional and is often referred to as BIDI. Technically, it only requires half the actual length of the fiber. As a photoelectric conversion device, the single-fiber optical module also adopts wavelength division multiplexing technology. WDM integrates and divides data according to the wavelength of light. Wavelength range from 1300 to 1600 nm. These just happen to be more stable in terms of signal strength. The bright side is that this type of optical module can be used in remote areas where fiber optics are scarce.
Dual Fiber Module: This is the most common type of the two. Dual fiber modules use the same wavelength on both fiber lines. It has two different channels or ports for data transmission and reception. In these lanes, TX is used for transmission and RX is used for reception. The core function of converting an electrical signal to an optical signal remains the same, albeit in a different way.
Dual Fiber Optical Module
The difference between single-fiber optical module and dual-fiber optical module
The definitions of these two types of optical modules clearly point out some differences. Nevertheless, this is the difference between single-fiber optical modules and dual-fiber optical modules.
Dual-fiber optical modules can be converted to single-fiber and vice versa as needed. This can be done if the connectivity provider provides a single fiber and the complex or area that requires the network has dual fiber modules. They have different numbers of ports. Dual types have two ports, while single types have only one.
