Rugged mHz-Linewidth Superradiant Laser Driven by a Hot Atomic Beam
Haonan Liu, Simon B. Jäger, Xianquan Yu, Steven Touzard, Athreya Shankar, Murray Holland, Travis Nicholson
Abstract
We propose a new type of superradiant laser based on a hot atomic beam traversing an optical cavity. We show that the theoretical minimum linewidth and maximum power are competitive with the best ultracoherent clock lasers. Also, our system operates naturally in continuous wave mode, which has been elusive for superradiant lasers so far. Unlike existing ultracoherent lasers, our design is simple and rugged. This makes it a candidate for the first widely accessible ultracoherent laser, as well as the first to realize sought-after applications of ultracoherent lasers in challenging environments.
Topics & Concepts
Laser linewidthLaserPhysicsOpticsSuperradianceAtomic clockInjection seederOptoelectronicsTraverseBeam (structure)Laser power scalingSemiconductor laser theoryGeodesyGeographyAdvanced Frequency and Time StandardsCold Atom Physics and Bose-Einstein CondensatesAtomic and Subatomic Physics Research