NOTICE OF INTENT TO SOLE SOURCE - One (1) tunable single- frequency VECSEL laser system and one (1) tunable double single-frequency VECSEL laser system.

The Government requires one (1) tunable single- frequency VECSEL laser system and one (1) tunable double single-frequency VECSEL laser system that meet the following requirements: Shall be capable of continuous wave operation with a single longitudinal output mode and a fundamental transverse electromagnetic (TEM00) spatial mode with beam quality (M2) factor less than (<) 1.2. Shall have an output light that is linearly polarized with a ratio better than 100:1.

Shall have an output spectral linewidth that must be less than (<) one (1) megahertz (MHz) in a 50-microsecond averaging time. Shall have all necessary control electronics to enable laser operation, including water-cooling chillers if necessary. Shall have an analog feedback mechanism with bandwidth greater than 20 kilohertz (kHz) for stabilization of the output frequency relative to an external reference. Shall produce tunable wavelength of the lasers in a continuous and deterministic manner.

Shall have an output power of at least one (1) Watt over the entire wavelength tuning range. Shall meet the minimum/threshold tuning range for one (1) laser is from 1271.4 nanometers (nm) to 1255.5 nm, and best-effort/desired from 1296.6 nm to 1253.71nm. Shall meet the minimum/threshold tuning range for the other laser is from 745.62 nm to 738.8 nm, and best-effort/desired from 757.9 nm to 738.2 nm. This is a brand-name only purchase.