Quality

HJY Wavelength Division Product Quality Control Strategies and Advantages

1. Rigorous Verification in the Design Stage
   • Through simulation software and prototype testing, ensure that product designs comply with international standards (such as Telcordia GR - 1209/1221). For example, in the design of AAWG chips, a waveguide optimization algorithm is used to reduce the risks of insertion loss and crosstalk.
   • Introduce closed - loop management of customer requirements, directly integrating market feedback (such as temperature stability, channel consistency) into design iterations.
2. Raw Material and Supply Chain Management
   • Use wafers, optical fibers, and optical coating materials from global top - tier suppliers, establish a supplier classification evaluation system, and regularly review their quality certifications (such as ISO 9001).
   • Conduct spectral analysis, mechanical strength testing, etc. on all incoming raw materials to ensure batch stability.
3. Precision Manufacturing and Process Control
   • In the production process, automated mounting equipment and clean rooms (Class 1000) are adopted to reduce human errors.
   • Implement SPC (Statistical Process Control) for key processes (such as DWDM filter coating), and monitor parameters such as film thickness uniformity in real - time.
4. Multi - dimensional Testing and Certification
   • Laboratory - level testing: Use equipment such as OSA spectrum analyzers and high - low - temperature cycling chambers to verify the performance stability of products at - 40°C to 85°C.
   • Third - party certification: Obtain reliability certifications from third - party institutions (such as TÜV, CE) to ensure the objectivity of data.
5. Customer Feedback and Continuous Improvement
   • Establish a 24 - hour response mechanism for global customer complaints, and locate the root causes of problems through failure mode analysis (such as FMEA).
   • Regularly release quality white papers and disclose key indicators (such as mean time between failures > 100,000 hours).

1. Product Qualification Rate > 99.5%: Through SPC and automated testing, the defective product rate is controlled at an industry - leading level.
2. Improvement in Customer Satisfaction: In 2024, the return rate decreased by 30% year - on - year, and the customer repurchase rate reached 85%.
3. Fast Delivery Capability: Relying on the digital quality management system, full - process traceability from order to delivery is achieved, and the average delivery cycle is shortened by 20%.

Guangdong Huajiayu Technology Co., Ltd

Tel:86--18664306976

Fax:86

Contact Person: Mr.Walter

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