Chapter 6
LightPath Analysis Software Guide
LightPath Analysis (LPA) software may be purchased for use with the OBR. This
software can quickly and easily verify the performance characteristics of fiber optic
components, modules and cable assemblies for quality control purposes. LightPath
Analysis software compares devices to tolerance values in either a “golden”
Reference Trace or a Parameter Configuration File.
The user begins by adjusting the tolerance values in the Parameter Configuration
File or in the golden Reference Trace for future pass/fail comparisons. Then the
software can perform automated testing, comparing the device or component under
test to the user-created standard.
The software identifies three key features for
comparison:
Peaks, Drops, and Fibers
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(fiber segments). Other software features include:
• Automatic pass/fail visualization
• Return loss qualification vs. length
• Insertion loss qualification vs. length
• Automatic event mapping
Each detected Feature (Peak, Drop, or Fiber) is compared to the Parameter
Configuration File or to the Reference Trace, and marked as passing or failing
based on their similarity to the tolerated values. The entire trace is accepted as
passing if all expected features are present and fall within the desired tolerances for
return loss, insertion loss, and location.
LightPath Analysis Tutorial
This tutorial walks the user through adjusting the default Parameter Configuration
File and creating a Reference Trace using Luna Technology sample files. Later
sections describe how to create these files from your own devices, and how to use
these standards to pass or fail test data. Many of the LPA commands and tools also
exist in the OBR software and are described in Chapter 3, beginning on page 17.
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