博文

目前显示的是 四月, 2023的博文

Application Range of QSFP Optical Module

  QSFP is the abbreviation of "Quad Small Form-factor Pluggable", which is an optical module specification that can be used in high-speed network equipment. Its scope of application mainly includes the following aspects: 1. Data center network:  QSFP optical modules  can be used in high-speed data center networks, such as for the connection of switches, routers, servers and storage devices. 2. Optical fiber communication: QSFP optical modules can be used to transmit digital signals, audio and video signals, etc. in long-distance optical fiber transmission. 3. Cloud computing: With the development of cloud computing technology, QSFP optical transceivers are widely used in cloud computing systems, such as data center networks and cloud storage. 4. High-speed communication: QSFP optical modules support transmission rates up to 40Gbps or 100Gbps, and can be used in high-speed communication networks, such as financial transactions, high-frequency transactions and other fields....

What is WDM and how it works?

图片
  WDM stands for Wavelength Division Multiplexing. It is a technology used in fiber optic communication networks to increase the bandwidth capacity of a single optical fiber by transmitting multiple signals simultaneously at different wavelengths. In WDM, different data signals are assigned to different wavelengths of light, which are then transmitted over the same fiber. Each wavelength is modulated with its own data signal, and the resulting optical signals are combined and transmitted over the fiber. At the receiving end, the signals are separated by a demultiplexer into their individual wavelengths, which are then converted back into their original electrical signals. There are two main types of WDM:  Coarse Wavelength Division Multiplexing  (CWDM) and  Dense Wavelength Division Multiplexing  (DWDM). CWDM is used for short-range transmissions and typically supports up to 18 wavelengths. DWDM is used for long-haul transmissions and supports up to 80 or more w...