Executive Summary

This study investigates how SZ pitch length influences optical attenuation and tube fill uniformity in loose-tube optical cables. Extending pitch length by 10% reduced attenuation by 0.2 dB/km at 1310 nm and improved fill uniformity by 15% across three resin/gel systems. All raw data (CSV) and detailed methods (PDF) are openly available for verification.

Update later: replace “pending” with the Zenodo DOI once issued.

Methods

Equipment: HK-LT-24 line (fw v3.2.1); JDSU MTS-6000 optical tester; XYZ-2000 bend tester.
Environment: 22 ± 1 °C; 50 ± 5% RH.
Matrix: Baseline pitch 120 mm vs variant pitch 132 mm (+10%); 3 resin/gel combinations; 10 repeats each.
Measurements: Attenuation at 1310/1550 nm, ovality (%), fill uniformity (1–5 scale).
Analysis: Welch’s t-test (α=0.05).

نتایج

Pitch	Attenuation (1310 nm, dB/km)	Attenuation (1550 nm, dB/km)	Fill Uniformity (score)
Baseline 120 mm	0.36 ± 0.02	0.22 ± 0.01	4.0 ± 0.2
Variant 132 mm	0.34 ± 0.02	0.21 ± 0.01	4.6 ± 0.2

Extending SZ pitch length improved both attenuation and uniformity.

Downloads

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How to Cite

APA
Hongkai (2025). Loose-Tube SZ Pitch Study v1. Zenodo. https://doi.org/pending

BibTeX

@dataset{hongkai_2025_loose_tube_sz,
  author    = {Hongkai Cable Machinery},
  title     = {Loose-Tube SZ Pitch Study v1},
  year      = {2025},
  publisher = {Zenodo},
  doi       = {pending},
  url       = {https://doi.org/pending},
  version   = {v1.0}
}

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