Industry knowledge Archives

CWDM vs DWDM: What’s the Difference?

In optical transport networks (OTN), wavelength division multiplexing (WDM) systems primarily include two types: Coarse Wavelength Division Multiplexing (CWDM) and Dense Wavelength Division Multiplexing (DWDM). As two mainstream WDM technologies, both enhance fiber bandwidth utilization by simultaneously transmitting optical signals at different wavelengths within the same optical fiber. So, what exactly are the differences between […]

Industry knowledge, WHAT-IS

Differences and Connections between dBm, mW, and dB

In the field of optical communications, dBm, mW, and dB are three commonly used units. Understanding the relationship between them can help engineers make more precise judgments when designing and optimizing optical communication systems. This article briefly introduces the definitions and interrelationships of these three. Relationship between dBm and mW dBm (decibel-milliwatt) and mW (milliwatt) […]