Evaluate a sample
Test a coded sample in the intended host and port before a bulk order is confirmed.
Quality & compliance
Quality is a process,
not a promise.
Incoming inspection, coding verification, optical parameter testing, temperature screening and traceability — before a module is packed.
Control
How product quality is controlled.
Quality control for pluggable optics is mostly a question of catching variation early, because a module that fails after installation costs far more than one rejected on the bench. The flow therefore begins at goods-in, where optical sub-assemblies and electrical components are checked against the specification they were purchased to, and continues through coding verification, full optical parameter measurement and temperature screening before packing. Each module is measured individually rather than sampled, and the digital diagnostic values it reports are compared with the instrument readings so that the figures a network team will see in their own management system match what was measured in production. Samples are retained from each production lot, and the lot number printed on the label ties a delivered module back to its components, its coding target, its test record and its retained sample. That chain is what makes a field question answerable rather than a matter of opinion.
Process
Step by step.
Incoming material inspection
Optical sub-assemblies, driver and receiver circuits, housings, cages and connectors are checked against the purchase specification on arrival. Optical components are verified for wavelength, output power and sensitivity class, and mechanical parts for dimensional and finish conformity. Material that does not match the specification is held rather than used, and each accepted batch is recorded against a lot reference that follows it through assembly and into the finished module.
Assembly and in-process checks
Assembly follows the multi-source agreement for the form factor, with electrostatic protection and connector cleanliness controlled at each station. In-process checks confirm seating, solder integrity and optical alignment before the housing is closed, since these are the faults that are cheapest to correct at that point and most expensive to find later. Operators record the build against the lot reference so that any later question can be traced to a specific stage.
Coding and identification verification
The identification data programmed into each module is read back and compared with the coding target recorded on the order. Vendor fields, part identification, rate, reach, wavelength and connector data must agree with the confirmed configuration, and the checksum the host validates is verified at the same time. Coded modules are then seated in a host of the target platform to confirm that the port reads, accepts and reports the module as intended.
Optical parameter testing
Each module is measured for transmit output power, receiver sensitivity, extinction ratio, wavelength and, where the model calls for it, eye pattern quality, against the limits stated on its datasheet. Bidirectional single-fibre types are tested as matched pairs because the two ends carry different wavelengths and only work together. Measurements are recorded per module and per lot rather than summarised, so the data can be reissued if a customer asks for it.
Temperature screening and burn-in
Modules are run under power across the temperature range of their grade, commercial or industrial, to surface early-life failures and drift before shipment rather than after installation. Optical output and diagnostic values are read at the range extremes and compared with the readings taken at ambient, and units whose parameters move outside the datasheet window at any point in the cycle are rejected rather than reworked into the shipping quantity.
Sample retention and traceability
Samples are retained from each production lot and stored with the lot test record, the component batch references and the coding target. The lot number printed on the module label is the key to all of it, so a module returned from the field can be compared directly against a retained unit built at the same time. Records are kept for the warranty period so that a question raised late in that period can still be investigated.
Before you commit
Three things worth doing.
Confirm the coding
Send the platform, exact model and software version so compatibility is confirmed before production.
Check the optical budget
Work out the loss of the installed path before choosing a reach class.
Next step
Ask for the documentation set.
Tell us the configuration and destination and we will confirm which compliance documents apply.