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 Insights & Innovations
Discovering new possibilities in optical filtering

BEAM: Breakthroughs – When Precision Meets the Battlefield
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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.