Managing MFD Mismatch
Precision Beyond the Splice


Not all loss is bad workmanship. The SFD distinguishes fibre variance from true splice faults — saving time, reducing waste, and improving diagnostic accuracy.
The Challenge
In fibre optic networks, splices are expected to be near-lossless connections between fibres. However, when two fibres have different mode field diameters (MFDs)—for example, due to variations between batches, manufacturers, or fibre types—an unavoidable loss occurs even if the splice is perfectly executed.

Traditional OTDRs and estimation-based systems may wrongly flag this as a “bad splice.”
Engineers waste time re-splicing, only to find the loss remains.
Carriers face higher truck rolls, unnecessary repairs, and avoidable downtime.
Without proper identification, genuine splice faults may be overlooked if engineers assume all loss is due to fibre mismatch.


The Splice Fault Detector Advantage
MFD mismatch is unavoidable, but wasted effort isn’t. The SFD empowers carriers to separate fibre limitations from workmanship errors, protecting network reliability, reducing costs, and ensuring customers stay connected.
Infrared Light Leakage Detection
Measures the splice itself, not just signal loss.
Workmanship vs. Fibre Property
Distinguishes poor splicing from unavoidable MFD mismatch.
Evidence & Compliance
App-connected test records prove the splice was done correctly.
Operational Efficiency
Reduces wasted repeat visits, with large monetary savings.
Infrared Light Leakage Detection
Measures the splice itself, not just signal loss.
Workmanship vs. Fibre Property
Distinguishes poor splicing from unavoidable MFD mismatch.
Evidence & Compliance
App-connected test records prove the splice was done correctly.
Operational Efficiency
Reduces wasted repeat visits, with large monetary savings.
Reduce Operating Expenditure (OPEX)
Fewer Truck Rolls
Less wasted time.
Customer Experience
Faster fault resolution, fewer outages.
Procurement Insights
Spot fibre supply issues causing mismatches.

Stop Chasing Phantom Faults
Get accurate insights into fibre mismatches and workmanship issues to cut unnecessary rework.

