Iridian Spectral Technologies

Iridian specializes in providing custom filter solutions for a wide range of applications. Our in house design software, multiple fully automated coating platforms and 20 years’ experience dealing with a wide range of applications allows us to optimize the filter performance and cost for your product.

Iridian specializes in providing custom dichroic filter solutions for a wide range of applications. Our in house design software, multiple process options and 20 years’ experience dealing with a wide range of applications allow you to optimize your short pass or long pass dichroic filter performance and cost for your needs.

Iridian’s dichroic filters offer:

• high transmission in the bandpass region- typically greater than 95%
• accurate wavelength control and uniformity
• low passband IL and ripple
• steep slopes from full transmission to full blocking
• wide blocking ranges
• CWL at any wavelength from the UV to the mid IR ( 340 nm to 10 µm)

Iridian fabricates custom high quality fused silica and Si etalons at competitive prices with FSR values in the range of 12.5 GHz to 500 GHz, Here are some typical fused silica and single cavity etalon products manufactured by Iridian.

Iridian’s proprietary design and deposition technologies result in gain flattening filters that outperform traditional gain flattening filters. Iridian’s GFFs vary in complexity from simple parabolic curves to very complex curves possessing high modulation depths and steep slopes. Iridian manufactures custom GFFs with extremely low PPEF values for even the most challenging requirements.

Iridian’s SWIR, MWIR and LWIR bandpass filters are designed to optimize detection of spectral emission lines. These filters are deposited using energetic sputtering, which makes them very hard and durable.

The resulting filters also have exceptionally high transmittance levels and blocking from the visible to the LWIR. Iridian has off-the-shelf band pass filters for many of the wavelengths commonly used for gas detection.

Available gas lines include H₂O, CH₄, CO₂, CO, N₂O and O₃.

Filters for other wavelengths can also be supplied.

Iridian Spectral Technologies is a leading global supplier for applications in telecommunications, spectroscopy (Raman, fluorescence, and flow cytometry), biomedical imaging, endoscopy imaging, sensing, display and entertainment (glasses for 3D cinema, display coatings). Our optical filters and coatings cover the spectral range from UV 300 nm to LWIR 10 μm. Our custom fitler products include narrow bandpass filters, steep edge long- or shortpass filters, dichroic edge filter, notch filter, patterned and assembled multi-zone filter and optics for satcom and earth observation.

See also our white paper on The Right Filter Is Key to Lower-Cost and Faster Time-to-Market MWIR Equipment!

Iridian has a long history as a leading global supplier of custom optical filters for the telecommunications industry and provides telecom filters at competitive prices from prototype to high volumes. Leveraging our world class design and manufacturing capabilities we can consistently provide the best filter solution for your packaged filter product. Iridian provides a complete range of telecom filters for all of your component design requirements.