Monthly Archives: December 2021

RC Sensor Calibrations

Philtec recently performed calibration tests on their sensors, using different target materials supplied by their customers. Calibrations were made to 4 different metal targets without adjusting the gain output control. Only the SNR control was varied to 3-4 volts max to optimize the signal for each target. The four targets were: Dull Metal: A dull … Continue reading

30-Dec-2021 Blog, Detectors, PHILTEC

What is a Hybrid Gain Flattening Filter (GFF)

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 light transmits a separate data channel. Over long distances, Erbium-Doped Fiber Amplifiers (EDFAs) amplify these signals to ensure … Continue reading

23-Dec-2021 Blog, Iridian Spectral Technologies, Optics

Standard Threaded Tips from Philtec

Philtec produces threaded tips in a variety of lengths and sizes. Some are easy to machine, while others are very difficult. Any diameter thread with a long length is more difficult. Read Philtec Application Note No. 73 to see Philtec’s Table of Standard Minimum Thread Sizes for Sensor Tips. This table shows standard threads with standard lengths … Continue reading

19-Dec-2021 Blog, Detectors, PHILTEC

Expanding Network Capacity with Coarse Wavelength Division Multiplexing

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 capacity to networks while avoiding the cost of expensive upgrades. Wavelength Division Multiplexing (WDM) transceivers are compatible with existing … Continue reading

16-Dec-2021 Blog, Iridian Spectral Technologies, Optics

Single Crystal Growth with CO2 Laser-Heated Floating-Zone

By the 1970s, the telecommunications industry was increasingly interested in growing single crystal oxides of small-diameter and high-purity due to their advantageous material properties for fiber optical applications. The floating zone technique was the preferred choice, but could not be applied due to inefficient RF heating of the oxides. A solution to this problem was presented … Continue reading

15-Dec-2021 Access Laser, Blog, Lasers

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