Newsletter | October 15, 2020

10.15.20 -- Optical Filter Insights Across Various Applications

The Application Of WDM Channel Skip Filters

Channel skip filters are components added to wavelength division multiplexing (WDM) add/drop modules to facilitate band splitting and to manage multiple ITU channels. These filters feature narrow transitions from pass band to blocking band, minimizing lost channels while maintaining high spectral efficiency since the express channels undergo only one reflection.

Advantages Of Multiple Band Pass Filters In Telecommunications Applications

Multiband filters help optimize price-performance balance while also conserving space, simplifying design, and improving performance. This article details the advantages of using multiband filters in place of two or more single-band filters, examining WDM module performance, reliability, cost, and dimension concerns in design and production.

“Fingerprint” Vs. Handheld Raman Applications And The Different Optical Filters That Enable Them

Raman spectroscopy is a powerful analytical tool capable of identifying molecular constituents of samples under test. When combined with microscopy, it can also be used as a noninvasive, noncontact solution for exploring specific cellular structures and functions. It is no wonder that Raman has established a presence as an invaluable analytical technique both in labs and in the field. 

The Eyes Of The Instruments: Using Optical Filters To Observe And Measure Earth From A Different Perspective

An improved ability to manage or understand the natural or influenced phenomena is critical to ensuring that we maintain a healthy planet capable of sustaining humanity as part of its diverse biomass. But understanding these phenomena and how they are changing over time requires measurement.

Specifying Surface Figure And Wavefront Distortion For Multilayer Optical Filters

Optical filters are used in many applications, and the surface figure and wavefront distortion requirements of filters are dependent on where and how they are used. Learn where, when, how, and how much wavefront distortion to specify in order to ensure that functional requirements of filters are guaranteed while unnecessary and costly constraints are avoided.