For aerospace, defense, semiconductor, and scientific programs, *where* a detector is made matters as much as how it performs. Opto Diode is a US-based precision photonics manufacturer in Camarillo, California, and a division of ITW (Illinois Tool Works) — designing and building silicon photodiodes, UV/EUV and infrared detectors, and infrared emitters in the United States for over 40 years.
With an on-site wafer fab, ISO 9001:2015 registration, and ITAR compliance, Opto Diode gives engineers and procurement teams a stable, auditable, domestic source of supply — backed by the engineering depth to deliver both standard catalog parts and fully custom designs.
Request a quote or talk to our engineering team →
Why a US-Based Manufacturer Matters
- Domestic sourcing & supply security. Components are designed and manufactured in the US (Camarillo, CA), supporting domestic-content and supply-chain requirements for sensitive programs.
- ITAR compliance. Opto Diode maintains ITAR compliance — important context for defense and export-controlled work. *(Export jurisdiction and licensing are determined per item and program; confirm classification with our team.)*
- On-site wafer fabrication. Detectors are built on an in-house wafer fab, giving tight process control and the ability to support long product lifecycles and custom runs.
- ISO 9001:2015 quality system. A registered quality management system underpins consistency, traceability, and reliability.
- Direct manufacturer engagement. You work with the people who make the device — for design-in support, drive conditions, packaging, and lifetime considerations.
What We Manufacture
Opto Diode’s portfolio spans the spectrum from soft x-ray and EUV through the visible and into the mid-infrared:
- Silicon photodiodes — precision detectors for scientific, industrial, medical, and aerospace light measurement.
- UV / EUV / soft x-ray detectors — the AXUV (absolute, windowless, 100% internal quantum efficiency) and SXUV (radiation-hard, stable EUV responsivity) families for synchrotron, lithography, and metrology.
- Infrared detectors — PbS (SWIR) and PbSe (MWIR) lead-salt detectors for gas analysis, flame detection, and thermal sensing.
- Infrared emitters & IR LEDs — GaAlAs near-infrared LEDs, high-power illuminators, and mid-IR emitters for sensing, NDIR, and covert lighting.
- Avalanche photodiodes (APDs) — high-gain, low-noise silicon and InGaAs APDs.
Built for Custom — Not Just Catalog
Opto Diode is, at its core, a custom shop: over 70% of our business is custom-engineered work. Beyond a deep standard catalog, our team routinely tailors active area, spectral response, packaging, windows/coatings, and cooling to a program’s exact requirements — backed by US design, US manufacturing, and direct engineering support.
Quality & Compliance at a Glance
- US design and manufacturing — Camarillo, California
- A division of ITW (Illinois Tool Works)
- ISO 9001:2015 registered
- ITAR compliant
- On-site wafer fabrication
- Standard and custom designs
See our compliance documentation or contact us for certificates and program-specific documentation.
Talk to a US Photonics Manufacturer
Whether you need a catalog photodiode, a radiation-hard EUV detector, an infrared detector for a gas analyzer, or a fully custom design, Opto Diode can support your program from prototype through production — designed and built in the USA.
[Contact Opto Diode for a quote, samples, or engineering support →](https://optodiode.com/contact-us/)
Frequently Asked Questions
Where are Opto Diode products manufactured?
In the United States, at Opto Diode’s facility in Camarillo, California, which includes an on-site wafer fab. Opto Diode is a division of ITW (Illinois Tool Works).
Is Opto Diode ITAR compliant?
Yes. Opto Diode maintains ITAR compliance. Export jurisdiction and licensing are determined per item and per program, so contact us to review classification and documentation for your specific application.
What quality certifications does Opto Diode hold?
Opto Diode operates an ISO 9001:2015 registered quality management system, and maintains ITAR, cybersecurity, and hazardous-waste compliance — all documented on our compliance page.
Can Opto Diode build custom detectors and emitters?
Yes — custom work is the majority of our business. We tailor active area, spectral response, packaging, coatings, and cooling to your requirements, with US-based design and manufacturing support.
Want the full product line in one document? Download the Opto Diode product catalog.