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  • What is the difference between CWDM equipment and DWDM equipment?
    What is the difference between CWDM equipment and DWDM equipment?
    • July 21. 2022

    In the construction of metropolitan area network, wavelength division multiplexing equipment is an important part, mainly including CWDM coarse wavelength division multiplexing equipment and DWDM dense wavelength division multiplexing equipment, so what is the difference between the two? In this article, ETU-LINK will tell you the difference between CWDM equipment and DWDM equipment.   1.&nbs...

  • The development history of optical modules
    The development history of optical modules
    • July 29. 2022

    Communication has existed since the primitive society. Beacon fires and flying pigeons were common communication methods in ancient times. Later, after the industrial revolution, telegraph and telephone appeared. Until the modern optical network, communication technology has been developing continuously. However, the three basic elements to complete the information transmission, namely the source,...

  • What are the differences between 100G QSFP28 CLR4 and CWDM4 optical modules?
    What are the differences between 100G QSFP28 CLR4 and CWDM4 optical modules?
    • August 16. 2022

    With the continuous surge in data center traffic, the market demand for 100G optical modules is also further increasing. Common 100G optical modules include SR4, LR4, ER4, etc. However, in practical applications, due to the length of the optical fiber link. Several types of optical modules alone cannot meet the most cost-effective optical network transmission solutions in data centers. Therefore, ...

  • What is OM5 fiber patch cord? Where can it be used?
    What is OM5 fiber patch cord? Where can it be used?
    • August 25. 2022

    What is OM5 fiber patch cord? Where can it be used? As we know that OM3 and OM4 multimode fibers are mainly used to connect optical modules in the 850nm band. However, with the continuous improvement of the transmission rate of optical modules, since the parallel transmission technology uses multiple single-channel parallel transmissions, more dense fiber cabling is required, management and mainte...

  • Several ways to Improve the Transmission Rate of Optical Modules
    Several ways to Improve the Transmission Rate of Optical Modules
    • September 22. 2022

    As data centers and telecom operators require higher transmission rates for optical modules, what technologies do optical module manufacturers use to achieve higher transmission rates? This article ETU-LINK will reveal the answer for you. 1. Increase the baud rate. The baud rate refers to the modulation rate of the data signal to the carrier. This method is mostly used for low rate optical modules...

  • What are the packaging processes of optical devices in optical modules?
    What are the packaging processes of optical devices in optical modules?
    • October 25. 2022

    It is believed that everyone should be very familiar with the packaging of optical modules after reading the previous articles of ETU-LINK. So how much do you know about the packaging of optical components in optical modules? In this article, ETU-LINK will take you to understand the packaging process of optical devices.   At present, the common optical device packages include Box, COB, TO-CAN...

  • What is the cabling structure under the leaf ridge network?
    What is the cabling structure under the leaf ridge network?
    • November 01. 2022

    As networks grow in size, we are seeing a shift from the traditional three-layer network architecture to a flatter, wider Spine-Leaf architecture. Most modern e-commerce, social media and cloud applications use distributed computing to serve their customers.  Distributed computing means that servers speak to servers and work in parallel to create dynamic web pages and answer customer question...

  • If the optical module port is exposed to the external environment for a long time and is polluted, How to clean?
    If the optical module port is exposed to the external environment for a long time and is polluted, How to clean?
    • November 08. 2022

    Usually, the ports of the newly purchased optical modules are clean, and there is no need to clean the ports, but for the optical modules that are idle or have not been inserted into the dust cap in time, when they are used again, in order to prevent the transmission performance from being affected, we still have It is necessary to clean the port of the optical module first. Then the following ETU...

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