Application Notes, Learning Center
“Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something, you can’t understand it. If you can’t understand it, you can’t control it. If you can’t control it, you can’t improve it.”
Application Notes, Featured, Learning Center
Clear the Air: New Optical Filters for Sensors and Detectors Environmental air quality; proximity control; crowd counting; climate change; the “Internet of Things”. Our world has become an increasingly monitored place where the proliferation of sensors and detectors...
Learning Center, Technical Notes
1 Introduction Large format (>100 mm diameter), narrow bandpass filters (NBPF) are required in many fields. Applications requiring a large field of view drive the need for large collection optics, however high wavelength selectivity provided by narrow,...
Learning Center, Quality Assurance
As experts in the design and manufacture of thin film optical filters, Iridian employs rigorous quality assurance processes…
Learning Center, Quality Assurance
Iridian has been accorded Telcordia qualification under the Telcordia Group Requirements…
Learning Center, Quality Assurance
Iridian’s products are compliant with the EU directive…
How To, Learning Center
Gain Flattening Filter (GFFs), also known as gain equalizing filters, are used to flatten or smooth out unequal signal intensities over…
How To, Learning Center
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…
How To, Learning Center
Coarse Wavelength Division Multiplexing (CWDM) filters are designed to multiplex and de-multiplex wavelength signals in metropolitan, access and enterprise networks and for Cable TV applications. In addition…
How To, Learning Center
Linear Transmittance Filter (LTF) has a transmittance that is changing linearly over a specified wavelength range. LTFs are typically used for…
How To, Learning Center
The Single Cavity Filter (SCF) is used to select a single frequency from a broad spectral range. SCFs are typically used for…
How To, Learning Center
A Solid Etalon Filter (SEF) is used to select a periodically spaced frequency grid from a broad spectral range. The key specifications