What is the primary function of an optical power meter?

The primary function of an optical power meter is to measure signal strength. This device is essential for ensuring that the optical signals transmitted through fiber optic cables are within the acceptable power levels for optimal performance. Measuring the power in dBm (decibels relative to one milliwatt) allows technicians to assess the quality of the optical signal, troubleshoot issues, and verify that installations comply with specifications.

By providing a quantifiable reading of the optical power, an optical power meter helps in evaluating the efficiency of the fiber optic network. A correctly calibrated and utilized power meter ensures that the system operates at the desired performance levels, which is crucial for minimizing data loss and maintaining effective communication. This capability is fundamental when performing tasks such as link loss testing and validating fiber optic installations.