Using optical transceiver technology within space vehicles

Posted by Javier Alejandro de la Ossa Fernández
On November 8, 2022
0

Optical transceiver technology devices have shown an increase on performance and a reduction in SWaP (Size, Weight, and Power) by their inclusion in Very High Throughput Satellites (VHTS) payloads. To ensure their practical use in space applications, they need a compact package, low power consumption, and highly reliable.

Optical Transceiver

Optical Transceiver in New Generation Satellite Communication

Posted by Emilio Cano García
On November 8, 2022
0

Optical transceiver integrated chipset and module for on-board VCSEL (Vertical Cavity Surface Emitting Laser) based satellite optical interconnects.

Optical Transceiver

Optical Interconnects, TRL9 Technology

Posted by Emilio Cano García
On November 8, 2022
0

Optical interconnect technology has reached the highest level of Technical Readiness Level (TRL), verifying that its use is operational in the space environment.

Optoelectronics

ALTER TECHNOLOGY signs collaboration agreement with Optoi

Posted by doEEEt Media Group
On February 22, 2022
0

Optoi's optocouplers are now available on doEEEt.com. ALTER TECHNOLOGY signs a collaboration agreement with Optoi and announce Optoi's optocouplers are now available on doEEEt.com.

Optoelectronics, TESTING

IR SOURCES THERMAL VACUUM CYCLING CHARACTERIZATION

Posted by Alejandro López Moya
On February 11, 2022
0

Thermal Vacuum Testing is necessary to be carried out because the environmental conditions in the space are extreme, the combination of low pressure and extreme temperatures can cause the failure of a component. That is why in Alter Technology, we test the components in similar conditions.

Optoelectronics, TESTING

NIR-VIS-UV LIDAR ECHO EMULATOR

Posted by doEEEt Media Group
On January 31, 2022
0

Space agencies have carried out numerous research projects to develop systems to detect and quantify the concentration of Greenhouse gases, such as carbon dioxide and methane, which are the main drivers of climate change. The measurement system used for this purpose is called LIDAR (Light Detection and Ranging).

Optoelectronics, TESTING

Photonic Integrated Circuits Radiation

Posted by David Poudereux Sánchez
On January 31, 2022
0

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
0

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

Lasers Endurance Characterization in Vacuum Conditions – Test Setup

Posted by Alejandro López Moya
On January 25, 2022
0

Laser diodes characterization can be hard due to the laser’s nature. In the case of lasers, perfect control of current and temperature applied is mandatory. In addition, a good heat dissipation must be provided to avoid lasers being damaged. Special and complex equipment is required for a perfect characterization because accuracy is a must with thi

Optoelectronics, TESTING

GRACE PROJECT: Electrical Characterization at 500°C

Posted by Juan Moreno Echarri
On January 24, 2022
0

Our Optoelectronics department knows how to fulfill this need. One of our customers requested that we carry a thermal cycling test at extreme temperatures (between 93ºC and -178ºC) over some VIS-NIR calibration sources (five samples at a time). At the same time, these sources were tested in vacuum conditions, and electro-optical characterization at different temperatures during cycling was requested.

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