Who we are
Iridian Spectral Technologies, founded in 1998 in Ottawa, Canada, is a leading manufacturer of thin film optical filters serving diverse global markets. The company supports the full product lifecycle, from early-stage prototype development through high‑volume production. Over the years, Iridian has invested heavily in advanced automation to deliver consistently high quality while maintaining cost efficiency. This enables Iridian to uniquely combine large‑scale commodity filter production with highly customized optical filter solutions.
Our Mission
At Iridian we strive to serve our customers by providing optical filter solutions designed and manufactured to meet or exceed both technical and commercial needs.
We focus on operational and technical value stream innovation and will invest resources to be the first to market for high value opportunities in diverse markets. We adapt and grow, learning from new challenges and opportunities and scale from prototype builds to volume production.
Capabilities

Filter Design
Iridian’s custom filter design capability is powered by proprietary optical filter design software used by a team of highly capable engineers and scientists. This combination enables the development of highly complex, application‑specific thin film filters with precise control over spectral performance. Iridian collaborates closely with OEM customers, guiding projects from initial concept and prototype development through to high‑volume production. This integrated design‑to‑manufacturing approach ensures robust, scalable, and optimized optical filter solutions.

Coating
Iridian leverages customized, high‑energy magnetron sputtering platforms to produce durable, environmentally stable optical coatings spanning the UV through the LWIR, from approximately 340 nm to 10 µm. These advanced sputtering systems enable excellent film density, adhesion, and long‑term performance across demanding applications. For extended LWIR requirements, Iridian also utilizes specialized evaporation deposition platforms capable of producing filters operating in the 10–15 µm wavelength region. This combination of deposition technologies allows Iridian to deliver robust, high‑performance filter solutions across a broad spectral range.

Dicing & Sizing
Using state‑of‑the‑art shaping technologies, Iridian produces optics with exceptionally tight dimensional accuracy. These advanced processes support a wide range of geometries, enabling components in numerous shapes, sizes, and edge profiles. High‑precision shaping ensures consistent optical performance and seamless integration into demanding systems. This capability complements Iridian’s coating expertise to deliver fully engineered, ready‑to‑use optical solutions.

Polishing
Iridian’s experienced polishing team delivers unmatched surface quality, achieving the tight tolerances and finishes required for high‑performance optical systems. Iridian maintains full control over quality, consistency, and performance from start to finish. The company supports small‑quantity builds ideal for prototyping and early design validation. These processes are seamlessly scalable and highly tuned for repeatable, cost‑effective high‑volume production.

Metrology
Iridian maintains the highest quality standards using world‑class optical metrology equipment integrated throughout its manufacturing processes. Comprehensive inspections verify optical performance while advanced surface metrology measures roughness, flatness, and identifies defects with exceptional precision. Dimensional measurements ensure components meet tight mechanical tolerances required for seamless system integration. This rigorous metrology approach guarantees consistent, high‑reliability optical products for both prototype and high‑volume production.

Specialty Optics
Iridian thrives on solving the optical industry’s most demanding challenges. We take pride in developing novel, unique, and fully bespoke solutions for highly complex applications that push conventional boundaries.
By combining deep scientific expertise with advanced design and manufacturing capabilities, we turn ambitious concepts into reality. If it falls within the laws of physics, Iridian will find a way to make it happen!
Market Areas We Serve

Satcom & Lasercom
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Telcom
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Datacom
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Sensing + Detection
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Upcoming Events
Iridian to Attend OFC 2026
Iridian will be attending OFC in San Diego between March 26 – 28, 2026.
Please connect with us to discuss your needs for optical filters for communications (telecom, datacom and satcom) and many other applications.
Check Back Later for Future Events
We are planning for new events and will publish them here shortly, please come back later for future events.
Photonics West Exhibition 2026
Iridian will be exhibiting at Photonics West Conference at the Moscone Center in San Francisco between Jan 28-30. Please visit Us at Booth # 949.


