Work

Strong broadband intensity noise squeezing from infrared to terahertz frequencies in lasers with nonlinear dissipation

Year: 2025

Type: article

Abstract: The generation and application of squeezed light have long been central goals of quantum optics. Intensity noise squeezing of bright (coherent) states (“bright squeezing”), in contrast to squeezed vacuum, is relatively underdeveloped. The current state of the art has generally been restricted to narrow operating wavelength ranges and does not natively support strong intracavity and broadband output squeezing. Here, we show how lasers with sharp intensity‐dependent dissipation can support strong intensity noise squeezing from infrared (IR) to terahertz (THz) wavelengths, the latter of which has eluded quantum light generation. Our protocol realizes strongly ( dB) intensity noise‐squeezed intracavity quantum states as well as output squeezing surpassing gigahertz bandwidths. Furthermore, we show how the same systems also support self‐pulsing and bistability, enabling control of light in both the mean field and noise domains. Our protocol could enable advances in low‐noise communication, cavity QED, and quantum sensing across the electromagnetic spectrum.

Source: Nanophotonics

DOI: 10.1515/nanoph-2025-0259

Authors: Sahil Pontula, Jamison Sloan, Nicholas Rivera, Marin Soljačić

Institutions: Massachusetts Institute of Technology, Stanford University, Harvard University, Cornell University

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,995

Funders: Hertz Foundation, Society of Fellows, Harvard University, Air Force Office of Scientific Research, Army Research Office