Breakthrough in Quantum Optics: Strong Broadband Intensity Noise Squeezing Achieved

Strategic Insights -

Research at Massachusetts Institute of Technology (MIT) has made a significant advancement in the field of quantum optics, achieving strong broadband intensity noise squeezing from infrared to terahertz frequencies in lasers with nonlinear dissipation. This breakthrough has the potential to enable advances in low-noise communication, cavity QED, and quantum sensing across the electromagnetic spectrum. The study, published in the journal Nanophotonics, demonstrates a novel protocol that realizes strongly intensity noise-squeezed intracavity quantum states and output squeezing surpassing gigahertz bandwidths.

Key Takeaways:

  • The research achieved strong broadband intensity noise squeezing from infrared to terahertz frequencies in lasers with nonlinear dissipation.
  • The breakthrough demonstrates a novel protocol that realizes strongly intensity noise-squeezed intracavity quantum states and output squeezing surpassing gigahertz bandwidths.
  • The study shows that lasers with sharp intensity-dependent dissipation can support strong intensity noise squeezing across a broad operating wavelength range.
  • The research has the potential to enable advances in low-noise communication, cavity QED, and quantum sensing across the electromagnetic spectrum.
  • The authors of the study, including Sahil Pontula, Marin Soljacic, Jamison Sloan, and Nicholas Rivera, demonstrated the protocol's ability to control light in both the mean field and noise domains.
  • The research was supported by Harvard University and published in the journal Nanophotonics.

Statistics:

  • 10 dB intensity noise-squeezed intracavity quantum states were achieved.
  • Output squeezing exceeding gigahertz bandwidths was demonstrated.
  • The study showed that nonlinear dissipation in lasers can support strong intensity noise squeezing across a broad operating wavelength range (infrared to terahertz frequencies).
  • The research has the potential to enable advances in low-noise communication, cavity QED, and quantum sensing using lasers with nonlinear dissipation.

Sources:

  • "Strong Broadband Intensity Noise Squeezing From Infrared To Terahertz Frequencies In Lasers With Nonlinear Dissipation." Nanophotonics, 2025.
  • Investigators at Massachusetts Institute of Technology Detail Findings in Technology (Strong Broadband Intensity Noise Squeezing From Infrared To Terahertz Frequencies In Lasers With Nonlinear Dissipation). Journal of Engineering, October 13, 2025; p 1263.