Computer Science – Performance
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1131..187h&link_type=abstract
IN: Optical space communication; Proceedings of the Meeting, Paris, France, Apr. 24-26, 1989 (A90-38001 16-17). Bellingham, WA,
Computer Science
Performance
Avalanche Diodes, Data Links, Optical Communication, Photodiodes, Space Communication, Bandwidth, Bit Error Rate, Block Diagrams, Field Effect Transistors, Gallium Arsenides, High Voltages, Light Amplifiers, Pulse Modulation
Scientific paper
An account is given of the design features and performance capabilities of an 0.8-micron direct detection receiver front end (RFE) for the ESA Semiconductor Intersatellite Laser Experiment. The RFE uses low capacitance, high-sensitivity Si APDs to convert the weak optical receive signal into an electrical current; a low-noise transimpedance amplifier with a GaAs MESFET input stage further amplifies this current. Gain control, bandwidth switching, and switching-mode high-voltage APD bias supply are realized with specific circuitry, and implemented on two separate PCBs. The RFE consumes about 1.3 W of power and weighs 280 g.
Hespeler B.
Hieber E.
Wiesmann Th.
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