Ben Stibbs-Eaton, Author at Iridian Spectral Technologies

How Edge & Band Pass Filters Factor into IR Sensing

In the field of optics engineering, the ability to isolate specific wavelengths of light is crucial for various applications, including infrared (IR) sensing. Edge and band pass filters play a vital role in achieving this isolation, allowing for the detection and...

Improving IR Sensing Applications with Edge & Band Pass Filters

Light Notes

Infrared (IR) sensing applications are becoming more valuable in a wide range of scientific fields, including thermal imaging, biomedical sensing, and gas detection. However, the accuracy and efficiency of IR sensing can be significantly enhanced through the use of...

Which Detection Filters are Used for IR Sensing Applications?

Light Notes

IR sensing technology harnesses the power of infrared radiations – which are invisible to the human eye – for various scientific and industrial applications. It leverages specially designed IR sensors and filters to detect energy levels and monitor changes in the...

What are Etalon Filters & How are they Used in Datacoms?

Light Notes

Etalons are a type of Fabry–Pérot interferometer – an optical cavity made from two parallel reflecting surfaces. They can act as optical filters since only the frequencies matched to the resonant frequencies of the cavity can pass through the cavity. As a result, they...

How Telecom Networks Benefit from Multiband Optical Filters

Light Notes

As voice, video, and data traffic continue to increase, improving the flexibility and capacity of optical networks is a pressing challenge. Multiband optical filters have been used in applications as varied as astronomy, fluorescence spectroscopy, and 3D cinema. The...

What is a Hybrid Gain Flattening Filter (GFF)?

Light Notes

The rapid expansion of the World Wide Web and increased connectivity requirements have generated an explosion in optical communication systems. In optical fiber-based communications, optical signals are transported on a light wave. Each wavelength (or frequency) of...

Expanding Network Capacity with Coarse wavelength division multiplexing (CWDM)

Light Notes

The demands placed on networks by voice, video and data are increasing exponentially. Thus, service providers require more bandwidth and higher transmission speeds. However, deploying fiber cabling for each service is costly. Transceiver-based solutions add more...

The Basics of Long Pass Filters

Light Notes

Long pass filters, sometimes referred to as long pass edge filters, are designed to transmit wavelengths within a given wavelength range. This band is defined by the filter’s cut-on edge which essentially blocks frequencies shorter than the specified edge wavelength....

How Does a Dichroic Filter Work?

Light Notes

Dichroic filters are designed to selectively allow wavelengths within a specific transmission band to pass through while reflecting all other colors and for beam steering purposes. They are particularly useful in optical applications where the detector is...

What is a WDM Channel?

Learning Center, Light Notes

A simple approach in optical data communication is the use of a pair of optical fibers for a single channel transmission. The fiber pair provides the two directions for transmitting the data. Basically, one pair of fiber is equivalent to one data channel and the light...

An Overview of Optical Interconnect Technology

Learning Center, Light Notes

Optical interconnect technology is the successor to conventional electrical interconnects. Particularly in telecommunications, it was an obvious and essential step from electrical to optical interconnects to cope with the ever-growing demand for higher bandwidths,...

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