Tapered Amplifiers for Cold-Atom Optical Systems (TACOS)

AOSense proposes to develop laser amplifier modules for cold-atom optical systems. The device would deliver > 1 W of optical power at 852 nm by fiber when paired with an appropriate narrow-linewidth master laser oscillator. A key feature is the integration of a tapered amplifier with AOSense-proprietary compact, high-transmission optical isolators, yielding a fiber-in, fiber-out package with dimensions of 50 mm x 50 mm x 35 mm or smaller. This amplifier module has broad applicability to atom interferometers and atomic clocks, but it would be particularly useful for high-performance orbital sensors like Atom Interferometer Gravity Gradiometers (AIGGs). Such systems will likely utilize advanced atom-optic laser pulse sequences, which require more laser power to mitigate atom losses and achieve high sensitivity.