Semiconductor lasers (or laser diodes) operating in the wavelength region of 1.8 µm to 3 µm are attractive light sources for applications including remote sensing, laser spectroscopy or pollutant detection. Highly strained InGaAs Quantum Wells (QW) grown on InP substrates can...
![Commercial Optical Amplifiers for Potential use in Space Applications](https://wpo-altertechnology.com/wp-content/uploads/2016/02/Comparative-wall-plug-efficiency-310x232.jpg)
This paper describes the activities and results of an ESA-funded project concerned with the assessment of optical amplifier technologies and products for applications in fiber optic subsystems of future satellite payloads. On-board applications are briefly introduced, together...
![Defective glassivation test](https://wpo-altertechnology.com/wp-content/uploads/2015/12/Defective-glassivation-280x232.jpg)
This test is performed to verify the structural quality of the glassivation layer in aluminium metallized semiconductor devices or microcircuits. The glassivation layer is a deposited dielectric film (e.g., CVD, sputtered of electron beam evaporated glass or nitride, etc.) and...