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  • Understanding the Core Differences Between CWDM and DWDM
    Understanding the Core Differences Between CWDM and DWDM
    • September 18. 2025

    CWDM and DWDM, the "two brothers" in fiber optic communications, differ by only one letter in their names, but the difference is huge! Today, this article will explain the core differences and help you quickly distinguish them. Ⅰ. Transmission Capacity: Worlds Apart Technically, both rely on wavelength division multiplexing (WDM) technology, but they differ significantly in key parameters. DWDM (D...

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