What should be included when choosing the appropriate optical measurement for post-installation fiber-optic span tests?

When selecting an appropriate optical measurement for post-installation fiber-optic span tests, it is essential to consider attenuation measurements and dual wavelength testing. Attenuation measurements provide critical insight into the loss of signal strength over the fiber-optic span. This loss is a key performance indicator, affecting the overall quality of the fiber-optic link.

Dual wavelength testing adds another layer of validation by assessing the fiber's performance at different wavelengths. Fiber-optic cables can behave differently based on wavelength due to factors like material properties and bending losses, making it important to test at multiple wavelengths to ensure the integrity of the installation across the spectrum commonly used in telecommunications.

Incorporating both attenuation and dual wavelength testing ensures a comprehensive evaluation of the fiber-optic installation, addressing potential issues not captured through singular or less thorough methods. This holistic approach enhances reliability and performance of the fiber-optic system after installation.