State-of-the-Art Optical Manufacturing
Engineering Tomorrow's Solutions Today
Since 1976, Andover Corporation has set industry standards in optical filters and coatings from our comprehensive 44,000-square-foot manufacturing facility in Salem, New Hampshire. Our state-of-the-art facility reflects decades of continuous investment in advanced manufacturing technology, combining custom-designed automation with precision engineering expertise to stay at the forefront of optical innovation.
World-Class Manufacturing and Testing Capabilities
- Custom-designed automated optical coating chambers and fabrication systems
- Advanced optical metrology lab featuring custom interferometry testing
- Complete in-house polishing and precision glass fabrication
- Extensive optical quality control and measurement laboratories
- State-of-the-art interferometry for broadband and narrowband filter analysis
From medical instrumentation to space-borne imaging systems, our vertically integrated facility enables Andover Corporation to deliver superior optical filters, coatings, and assemblies across a broad range of industries. By maintaining complete control over every phase of production — from raw material preparation through final optical metrology — we achieve consistent quality, accelerated lead times, and reliable performance for even the most demanding applications.
Quality Validation Suite
End-to-end validation from design to deployment
Innovation Through Research and Development
Advancing Coating Technologies to Meet Tomorrow's Challenges
Research & Development
- Greater layer coatings capabilities
- Steeper edge filters
- Higher optical densities (OD)
- Faster turnaround times
Quality Assurance
- Automated measurement systems
- Computer-controlled coating chambers
- Comprehensive documentation
- Rigorous testing protocols
- Full material traceability
Frequently Asked Questions
Andover Corporation provides custom optical coatings, precision filter fabrication, polishing, metrology services, and environmental testing — all within our vertically integrated facility in Salem, New Hampshire.
We maintain complete in-house control over manufacturing, from raw material processing to final optical metrology and environmental testing. Our facility is ISO 9001:2015 and AS9100:2016 certified to ensure the highest standards of precision and reliability.
Our optical filters, coatings, and assemblies support critical applications in aerospace, defense, medical devices, life sciences, industrial sensing, and space exploration.
Our advanced metrology lab offers interferometry testing, surface quality analysis, transmitted wavefront error (TWE) measurement, broadband and narrowband spectrophotometry, and environmental durability testing.
Andover Insights & Innovations
Discovering new possibilities in optical filtering
Zinc Sulfide (ZnS)
Contact Our Team
Ready to discuss your optical needs? Whether you're looking for a quote or have technical questions, our expert team is here to help guide you to the perfect solution.