Iridian has a wealth of experience in designing and manufacturing optical filters for both long-distance signal transportation (telecom filters) and for short-range data center interconnects (datacom filters).

How Compensating Gain Flattening Filters Improve PPEF Performance. Iridian’s premium compensating GFFs offer a means to better control PPEF using what is known as the multi-design compensating method.

By Xiaolun Zeng, Michelle Briere, and Rebecca Saaltink, Iridian Spectral   Dense wavelength division multiplexing (DWDM) enables fiber-optic...

Data center evolution is driving demand for ever-higher data transmission rates, necessitating innovation in data center optical interconnect...

Raman spectroscopy probes the molecular vibrational and rotational modes of a material in order to detect and identify the material. Typically, laser light is incident upon the material and the scattered light is measured.

The excitation source (laser line) intensity is often to orders of magnitude greater than the Raman scattered signal. Therefore, edge pass (or notch) filters are required to block the Rayleigh scattered laser light while transmitting the red-wavelength shifted (Stokes) and/or the blue-wavelength shifted (Anti-Stokes) Raman scattered signal.

Raman spectroscopy is a powerful and increasingly ubiquitous analytical tool capable of identifying molecular constituents of samples under test and, when combined with microscopy, exploring specific cellular structures and functions. Non-invasive, non-contact, requiring no sample preparation or chemical tagging – it is no wonder that Raman has established a presence as an invaluable analytical technique both in labs and in the field.