2015/05/31 by Martin A. Finger, M. A. Finger, T. Sh. Iskhakov +5
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Atomic physics #Beam (structure) #Laser #Materials science #Noble gas #Nonlinear Photonic Systems #Optical fiber #Optics #Optoelectronics #Photonic Crystal and Fiber Optics #Photonic-crystal fiber #Physics #Raman scattering #Raman spectroscopy #Ultrashort pulse #physics.optics #quant-ph
paper · pdf · doi:10.1103/physrevlett.115.143602
openalex publication_date 2015/09/30 · arxiv created 2015/11/19 · arxiv updated 2015/11/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report a novel source of twin beams based on modulational instability in high-pressure argon-filled hollow-core kagome-style photonic-crystal fiber. The source is Raman-free and manifests strong photon-number correlations for femtosecond pulses of squeezed vacuum with a record brightness of ∼2500 photons per mode. The ultra-broadband (∼50 THz) twin beams are frequency tunable and contain one spatial and less than 5 frequency modes. The presented source outperforms all previously reported squeezed-vacuum twin-beam sources in terms of brightness and low mode content.