Large stroke fast steering mirror for free-space optical communication

Abstract

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.