Laser Interferometer Space Antenna (LISA) Frequency Reference System (FRS) Flight

NASA/GSFC has a requirement for the design, fabrication, qualification, and delivery of flight Frequency Reference System (FRS) hardware for NASA's Laser Interferometer Space Antenna (LISA) mission, consisting of three Flight Models and one Flight Spare. Each FRS unit comprises two tightly coupled subsystems, the FRS optical reference cavity (FRS-O) and the FRS frequency-locking electronics (FRS-E), which together stabilize the laser frequency using a Pound-Drever-Hall lock to meet LISA's picometer-scale measurement needs, with deliveries required on an aggressive schedule between February 2029 and May 2030. Minimal post-delivery support is included. NASA/GSFC intends to issue a sole source contract to BAE Systems Space & Mission Systems Inc. (BAE SMS) under the authority of FAR 6.103-1, to acquire the LISA FRS flight hardware. Based on a publicly issued Sources Sought Notice, only BAE SMS is capable of meeting the full FRS-O and FRS-E requirements within the fixed delivery schedule. …

Excerpt as published. The complete description, attachments, and any amendments are on the official notice.