Leading Global Supplier of Optical Filter Solutions

Wide range of high performance custom optical filters
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Hot Topic

“Multi-Function Telecom Filters” – check out our latest capabilities for custom telecom filters:

Combining multiple functionalities on single filters enables improved module performance and reduced component counts and costs for our customers!


Optical filters for free space telecommunication links

Spectroscopic Filters

Broadly speaking, these filters are used in optical systems based on Raman spectroscopy or laser-induced fluorescence.

Telecom Filters

High quality telecom filters at competitive prices to meet the ever increasing wireless and fiber-to-the-home traffic demand.


Optical filter solutions for LIDAR applications

Multi-Zone Filters (MZF)

Iridian offers both assembled multi-zone filter arrays and patterned multi-zone optical filters to address these growing needs.

Mid IR

Iridian’s SWIR, MWIR and LWIR bandpass filters are designed to optimize detection of spectral emission lines.

The Leader in Optical Filter Solutions

Iridian was founded in 1998 and It covers the entire spectrum from prototype development to volume production. Over the decades. Iridian has developed a high degree of automation in order to ensure high quality and low cost products. It has an unparalleled capability to produce both high volume commodity filters and custom thin film optical filters.

Latest News

Letter from Iridian President Regarding COVID-19

Letter from Iridian President Regarding COVID-19

Iridian Spectral Technologies is maintaining normal operations during this COVID-19 pandemic period. We continue our dedication to delivering your filters on time with the highest quality.
Our manufacturing capacity and lead times are unaffected; we have adequate supplies of raw materials onsite and have not been notified of any interruption in material supply from our key suppliers.

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Upcoming Events

SPIE 2024 – Photonics West

SPIE 2024 – Photonics West

Iridian will be exhibiting at Photonics West 2024 in the Moscone Center, San Francisco, 30 January-1 February 2024 at booth #3340. Please visit us to discuss your needs for optical filters for communications (telecom, datacom, satcom), spectroscopy instrumentation...

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SPIE 2024 – BiOS

SPIE 2024 – BiOS

Iridian will be exhibiting at BiOS 2024 in the Moscone Center, San Francisco, 27-28 January 2024 at booth #8340.

Please visit us to discuss your needs for optical filters for spectroscopy instrumentation including Raman, fluorescence, bio-analytical, and molecular diagnostics.

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