When the optical power of the optical module appears bad phenomenon, such as large light, small light, no light, unstable optical power, small side mode suppression ratio, the performance of the optical module will decline, thus affecting the performance and. When the optical power of the optical module appears bad phenomenon, such as large light, small light, no light, unstable optical power, small side mode suppression ratio, the performance of the optical module will decline, thus affecting the performance and. As an essential component of optical fiber communication, optical modules are optoelectronic devices that facilitate the conversion between optical and electrical signals during the transmission process. Operating at the physical layer of the OSI model, optical modules are core devices in optical. When designing optical networks, understanding the TX/RX power range is vital for ensuring optimal performance and long-term reliability. The TX (transmit) and RX (receive) power levels significantly affect everything from signal strength to transmission distances and the overall optical power. I believe many customers have noticed the TX / RX optical power parameters when purchasing optical modules. These two parameters are one of the important parameters to ensure the normal communication of optical modules. It is measured in decibels (dB) or milliwatts (mW) and plays a crucial role in determining the quality and reliability of optical networks.