INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Laser reliability and quality assurance procedure
4.1 Demonstration of product quality
4.2 Testing responsibilities
4.3 Quality Improvement Programmes (QIPs)
5 Tests
5.1 Structural similarity
5.2 Burn-in and screening (when applicable in the
DS)
6 Activities
6.1 Analysis of reliability results
6.2 Technical visits to LMMs
6.3 Design/process changes
6.4 Deliveries
6.5 Supplier documentation
Annex A (normative) Laser diode and laser module failure
mechanisms
Annex B (informative) Guide
Annex ZA Normative references to international publications
with their corresponding European publications
Figures
A.1 Non-linearities in laser-current characteristics
A.2 "Bathtub" failure rate curve
A.3 Example of cumulative failure plot showing log-normal
distribution of laser failure rate
A.4 Calculated failure rates for components having a
log-normal distribution of laser failure rate
A.5 Cross-section through a typical laser module showing
key components
A.6 Cross-section through a typical buried heterostructure
laser (bonded junction side up)