How LSOLINK Tests Optical Transceivers to Ensure Quality and Compatibility?
Source: Dev.to
Hardware Test
Spectral Analysis
Spectral analysis of optical modules is an important step in evaluating the spectrum characteristics of optical signals. It verifies whether core indicators such as laser wavelength, spectrum width, and side‑mode suppression meet design specifications. Instruments like spectrum analyzers are used to measure the central wavelength.
Bit Error Rate Test
The bit error rate (BER) test evaluates the accuracy of optical modules in transmitting data under specific conditions. It simulates real transmission scenarios and uses precise equipment such as bit error meters to ensure the BER meets industry standards.
High and Low Temperature Aging Test
This test verifies the reliability and stability of optical modules over long‑term use by simulating extreme temperature environments. It accelerates material aging, monitors data in real time, and predicts service life through failure analysis.
Endface Test
The endface test examines the optical fiber connector’s end face. Contamination or scratches can cause transmission loss. Testers use optical microscopes and end‑face testers to check for dust, oil, fingerprints, and other pollutants, and measure curvature radius, vertex offset, and angle polishing with an interferometer.
Eye Diagram Test
An eye diagram is generated by accumulating multiple signal cycles on an oscilloscope. By observing the waveform in the time domain, this test assesses signal integrity and evaluates the quality of data transmission.
Compatibility Test
Compatibility testing ensures optical modules operate stably with equipment from different manufacturers and adhere to various protocol standards.
- Connectivity test: Verify port LED operation and that the port rate meets standards.
- Parameter test: Read PN, VN, SN, etc., from the device to confirm they match the module label.
- DDM test: Monitor the five DDM parameters via the device management interface to ensure they stay within thresholds.
Quality Control
LSOLINK employs advanced quality management solutions. Each transceiver undergoes self‑inspection, including 20× and 200× microscope inspections, as well as comprehensive QC processes. From material procurement to production and laboratory testing, the quality control system demonstrates a commitment to excellence.
IQC Inspection
Incoming material inspection is the primary quality control step. Inspectors conduct comprehensive checks on raw materials and components before production to ensure they meet design specifications and industry standards, preventing unqualified items from entering the production line.
IPQC Inspection
Process inspection provides real‑time quality monitoring during manufacturing. Inspectors perform sampling inspections at predefined nodes, record analysis data, and intervene promptly when abnormalities are detected, reducing batch defects and improving overall product quality.
OQC Inspection
Shipping quality inspection is the final checkpoint before products leave the factory. Inspectors verify appearance, performance, and packaging through sampling and full inspections, ensuring compliance with technical specifications, industry standards, and customer customization requirements.
LSOLINK’s commitment to quality is recognized worldwide through certifications from leading international organizations, guaranteeing that every delivered product meets the highest standards.