Resistivity, Thermal Resistance and TCR Temperature Coefficient

Posted by doEEEt Media Group
On June 22, 2023
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This article introduces some key electrical resistor parameters such as resistivity, thermal resistance and TCR temperature coefficient.

Optoelectronics, TESTING

Photonic Integrated Circuits Radiation

Posted by David Poudereux Sánchez
On January 31, 2022
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ALTER is performing gamma and proton radiation at various PICs. The satellite market is experiencing a paradigm shift with the photonics penetration in every part of the satellite payload. Although some advances have been done with the introduction of optical interconnects in a commercial digital processor of a satellite payload

Optoelectronics, TESTING

Evaluation of Optical switches without moving parts

Posted by David Poudereux Sánchez
On January 27, 2022
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The most relevant result of this work is that all tested samples passed satisfactory the test without relevant changes in the measured parameters, with the exception of one of the WG-EO switches which had a catastrophic failure, as it will be commented later. The pass/non-pass criteria were defined comparing the results of the electro-optical characterization after each test with the corresponding results for each parameter prior to the tests, taking into account the measurement uncertainty.

Optoelectronics, TESTING

Thermal Vacuum For HV Optocouplers – Video Monitoring

Posted by Juan Moreno Echarri
On January 12, 2022
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Laser screening tests are done to comply with users’ requirements; two different challenges must be addressed. First, high-power lasers (30watts in this case) require specific test setups and important safety considerations to avoid dangerous situations in case of DUT/setup failure.