Optical Path Blog

Original explainers, field guides, and engineering notes on fiber-optic testing, design, and operations — written by Optical Path Engineering.

June 8, 2026 · 4 min read
How to Read an OTDR Trace: A Practical Guide for Field Techs
OTDR traces look intimidating until you know what you're looking at. Here's how to spot reflective events, splice loss, and the end of the fiber — and how to turn those readings into real distances.
OTDRFiber TestingField Engineering