Bringing the power of tabletop precision lasers for quantum science to chip-scale: ultra-low-linewidth self-injection locked 780 nm lasers

https://news.ucsb.edu/2024/021708/bringing-power-tabletop-precision-lasers-quantum-science-chip-scale

"cheaper, emitting single color/ frequency for ultra low-noise, stable light for ultra-precise atom measurement/ control... passing laser through rubidium atomic vapor, a near IR transitions to stable atomic linewidthsr... Fabry-Perot laser diode, resonator, silicon nitride platform... 4 orders magnitude better... cold atom quantum sensors (gravimeters/ 2-photon atomic clocks), portable field-deployable/ space-based quantum and cold-atom interferometer sensors, quantum computing with neutral atoms/ trapped ions"

Related:

Harvard Builds Laser the Size of a Chip, Bright Enough to Map Invisible Worlds
https://scitechdaily.com/harvard-builds-laser-the-size-of-a-chip-bright-enough-to-map-invisible-worlds/

Physicists improve precision of atomic clocks by reducing quantum noise
https://phys.org/news/2025-10-physicists-precision-atomic-clocks-quantum.html