Case 206 ยท Public preview
Two Independent Glass Failures Compromised a Laser Package
Two field-returned laser devices exhibited fluctuating optical power even though bench electrical measurements were stable.
Electrical testingSEMPackage dissectionFractographyEDS
What the evidence preview establishes
Fracture of the package lens produced a gross hermeticity breach, while cracked lead seals created an additional leakage path. Moisture ingress and associated electrical leakage provided a credible explanation for unstable laser power.
Why this case matters
When optical output fluctuates but electrical continuity remains stable, evaluate package hermeticity. Examine lens fracture origins, braze interfaces, glass-to-metal seals, and lead-forming marks as a connected mechanical system.
Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, four interpreted figures, alternative explanations, limitations, and practical application guidance.