Optical S-Parameter Analysis: Loss, Phase and Measurement Confidence
Yenra | Updated September 17, 2026
Article: https://yenra.com/ospa-optical-s-parameter-analyzer/

PASSIVE OPTICAL COMPONENT MEASUREMENT RECORD
Purpose: define a repeatable loss/phase/polarization comparison.
Decision and actual acceptance limits:
Device ID, port mapping and direction:
Instrument/software version and manual URL:
Calibration/reference date, method and check result:
Sketch/path description and reference planes:
Included patch leads, adapters and fixture treatment:
Wavelength span/spacing, optical power, temperature:
Polarization method, averaging and smoothing:
Connector preparation and changes:
Raw data/export locations:
Repeat without reconnecting; repeat after reconnecting:
Uncertainty/decision rule and excluded low-confidence regions:
Result, unresolved discrepancy and next action:

ILLUSTRATIONS ONLY: 1.00 mW input, 0.63 mW transmitted -> 2.01 dB insertion loss. 0.001 mW reflected at the reference plane -> 30 dB return loss. Record power boundaries and sign conventions.
Use the exact instrument manual for laser safety and operation.

SOURCE REFERENCES
Luna OVA 5100 description
https://www.lunainc.com/product/ova-5100
Luna OVA user guide
https://lunainc.com/sites/default/files/assets/files/resource-library/OVA%2BOFDR-UG22-04-11-11_OVA-sw5.2_OFDRsw4.1.pdf