671nm Laser cooling of lithium atoms

NIST’s Quantum Measurement Division is seeking a commercial‑off‑the‑shelf 671 nm laser system for lithium atom cooling in its quantum simulator. The laser must deliver >2 W of output, <1 MHz linewidth, high frequency stability, linear polarization, TEM00 mode, and include a computer interface and optional liquid‑cooling chiller. Delivery is FOB Destination to NIST’s Gaithersburg campus, with a maximum lead time of 25 weeks. The contract is a firm‑fixed‑price purchase order; the award will go to the lowest technically acceptable offer. Warranty is one year and payment is net‑30 after acceptance. • Required output: ≥2 W (up to 5 W adds value) at 671 nm • Linewidth < 1 MHz, drift < 100 MHz/hr, mode‑hop‑free tuning ≥3 GHz • Polarization extinction ≥100:1, M² ≤1.5 (≤1.05 adds value) • USB/RS‑232/RS‑422/Ethernet interface, 19‑in rack‑mountable controller • Shipping, installation, and one‑year warranty included • Delivery NLT 25 weeks ARO, FOB Destination to 100 Bureau Drive, Gaithersburg, MD • Firm‑fixed‑price, award to lowest technically acceptable bidder