New space giant constellations based on Free-Space Optical Communication (FSO) are a new challenge from many perspectives. Considering the mandatory cost efficiency, with repeatability of performances, and reliability with no defect at customer integration, requires an upheaval in space production and acceptance test methods, when the quantities are beyond several thousands of units. In this publication CEDRAT TECHNOLOGIES (CTEC) presents the design and test results of the P-FSM150S Pointing Ahead Mechanism (PAM) and M-FSM45 Fast Steering Mirror (FSM) Engineering Models, developed under ARTES project TELCO-B for future FSO constellations. The specific cost-efficient hardware design is presented, dedicated to very large quantities to be manufactured, together with the performance test results over a preliminary batch of EM’s production.
In order to cover new needs of large stroke beyond +/-2° for Free-space optical communication (FSO), inter-satellite links in constellations, as well as for Deep Space Optical Communications (DSOC), CEDRAT TECHNOLOGIES (CTEC) has developed a compact, low-power, high-stroke and high-bandwidth, Fast Steering Mirrors called M-FSM. The proposed M-FSM design is based on proprietary MICA™ flexure bearing magnetic actuators technology, taking heritage from other MICA™ Space application domains, such as long-life space cryogenic refrigerators. The M-FSM includes a dedicated 30mm silicon carbide (SIC) mirror developed by CTEC, based on PAM30 Flight Model knowhow heritage, currently under manufacturing for NASA PYSCHE Deep Space Optical Communication (DSOC) spacecraft.
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