SLAC National Accelerator Laboratory is requesting a quote for a highly specialized, fiber-coupled optical displacement measurement system with specific technical capabilities, including UHV-compatible sensor heads. The performance location is SLAC in Menlo Park, CA. Quotes for the product only must be submitted by March 31, 2026, and source selection will be based on the lowest price and best lead time. The Buy American Act applies to awards over a $15,000 unit price, and the resulting order will be a fixed-price purchase with NET-30 payment terms. Subcontractors must register in SAM.gov and comply with E-Verify enrollment requirements within 30 days of award.