Frequently Asked Questions
What are optical thin film filters? How are optical thin film filters manufactured? Click here for frequently asked questions and answers.
Gain Flattening Filter (GFF) Tutorial
Gain Flattening Filter (GFFs), also known as gain equalizing filters, are used to flatten or smooth out unequal signal intensities over…
Single Cavity Filter Tutorial
The Single Cavity Filter (SCF) is used to select a single frequency from a broad spectral range. SCFs are typically used for…
Etalon Tutorial
A Solid Etalon Filter (SEF) is used to select a periodically spaced frequency grid from a broad spectral range. The key specifications
Linear Transmittance Filter Tutorial
Linear Transmittance Filter (LTF) has a transmittance that is changing linearly over a specified wavelength range. LTFs are typically used for…
Tap Coupler – Beamsplitter Tutorial
Tap couplers filters and beamsplitters are used to reflect a specific percentage of incident light over a broad wavelength range and for a specified angle of incidence. Beamsplitters and tap couplers can be specified…
Iridian Announces New Optical Filters Designed for PCR Testing
Ottawa, Canada, Dec.14, 2020 In an effort to support the rapidly growing use of polymerase chain reaction (PCR) in rapid diagnosis of diseases such as COVID-19, Iridian Spectral Technologies has introduced a line of ultra performance optical filters specifically...
Iridian Welcomes India’s FII to Its Distributor Network
Ottawa, Canada, Nov.30, 2020 Iridian Spectral Technologies, Ltd. (Iridian) is pleased to announce that it’s long standing Indian distributor for aerospace filters, Futuristic International Inc (FII), is now available to address any and all Indian optical filter...Gain Flattening Filters (GFF)
Gain Flattening Filters (GFF’s), also known as gain equalizing filters, are used to flatten or smooth out unequal signal intensities over a number of specified channels in the C-, L- and U-Bands. This unequal signal intensity usually occurs after an amplification...
Iridian Supplying Key Components for New COVID-19 Testing Kit
Iridian Spectral Technologies would like to congratulate Spartan Bioscience on obtaining Health Canada approval this week for use of the Spartan Cube for COVID-19 testing. We are proud that Iridian’s optical filters are a key component in this instrument.
Iridian Expanding LiDAR Filter Capacity
Ottawa, Canada, August 26, 2019 – Iridian has recently expanded our filter capacity for LiDAR sensing application. Our Iridian LiDAR filters feature narrow bandwidth, higher transmission and low angular wavelength shift for wider AOI range. For more information on...
