Sources Sought for Laser System and Digital Laser Locking Device

The U.S. Naval Observatory (USNO) is issuing a Sources‑Sought notice (Solicitation N6228526PR00064) to identify qualified vendors capable of providing one high‑power, frequency‑doubled 423 nm laser system and one digital laser‑locking device for its Calcium Clock Development program. The laser must be based on an amplified 846 nm external‑cavity diode laser (ECDL) with a tapered‑amplifier, frequency‑double to ≥ 1000 mW at 423 nm, maintain a linewidth ≤ 10 kHz, and offer a mode‑hop‑free tuning range of ~15 GHz. Required features include optical isolation, fiber‑coupled wavelength pick‑off, auto‑tuning of alignment into the tapered amplifier and SHG stage, auto‑relocking of the bow‑tie cavity (preferably PDH), an electro‑optic modulator for residual modulation removal, and a well‑collimated output beam. The accompanying digital locking unit must support high‑finesse cavity or frequency‑comb locking, provide ≥ 50 MHz bandwidth, achieve ≤ 1 Hz linewidth, and incorporate a PID regulator with ≤ 10 ns delay. The system must be turn‑key, operable in a standard laboratory without user‑supplied parts, and the lock must interface seamlessly with the laser controller. Responses must be submitted by 16 April 2026, 12:00 noon, via email to Ms. Shere C. Reese (shere.c.reese.civ@us.navy.mil) and include company information, CAGE code, business size status, any applicable GSA/SeaPort‑NxG contract numbers, a capability statement with relevant past performance (last 5 years, contract numbers, values, periods), and indicate prime or subcontractor intent and potential subcontracting percentages. The effort is not set‑aside (NAICS 334511) and has a five‑month performance period from award. No contract will be awarded from this notice; it is for market research only.

Notice ID

db04b8af86914b1081e7f09a03754222

Solicitation Number

N6228526PR00064

NAICS Code

334511

Classification Code

5860