All articles tagged with #optical fibers
A new hollow optical fiber design using glass 'straws' could significantly increase data capacity and transmission distances, potentially leading to faster and more efficient Internet and telecommunications systems. Developed by researchers at the University of Southampton and produced by the startup Lumenisity, this innovation promises transformative improvements in data transfer speeds, especially in data centers.
Researchers at Aalto University have developed a method to create light vortices using metallic nanoparticles arranged in quasicrystal geometries. These vortices, akin to tiny hurricanes of light, can potentially carry significantly more data through optical fibers, enhancing data transmission capabilities. The study, published in Nature Communications, explores the relationship between symmetry and vortex formation, offering a new approach to encoding information in light for telecommunications.
Researchers have successfully cooled sound waves in an optical fiber to near quantum ground state using laser cooling and stimulated Brillouin scattering, reducing thermal noise and potentially bridging classical and quantum mechanics. This breakthrough paves the way for utilizing long acoustic phonons in quantum technologies, with implications for quantum communications and future quantum technologies. The study, published in Physical Review Letters, demonstrates a significant reduction in temperature of a sound wave in an optical fiber, marking a promising step towards reaching the quantum ground state in waveguides and gaining deeper insights into the fundamental nature of matter.
Researchers at the State University of Campinas (UNICAMP) in Brazil, in collaboration with colleagues at ETH Zurich and TU Delft, have conducted a study on the use of nanometric optomechanical cavities for the development of advanced quantum networks. The study introduces dissipative optomechanics, allowing for direct scattering of photons from the waveguide to the resonator, enabling tighter control of optoacoustic interaction. The researchers achieved a tenfold rise in the optomechanical coupling rate and raised the mechanical frequency by two orders of magnitude, offering promising prospects for more effective devices. The study also lays the foundation for future research in manipulating mechanical modes individually and mitigating optical non-linearities in optomechanical devices.
Researchers at the Max Planck Institute for the Science of Light have developed a new method to measure negative pressure using liquid-filled optical fibers and sound waves. By encapsulating nanoliters of liquid in a closed optical fiber, the scientists were able to explore the unique thermodynamic states of the liquid. The combination of optical and acoustic waves allowed for precise pressure measurements and spatially resolved imaging inside the fiber. This new measurement technique provides insights into thermodynamic dependencies and opens up possibilities for monitoring chemical reactions in toxic liquids and investigating hard-to-access areas of thermodynamics.
Scientists at the University of Bath have developed a mathematical model to explain how antiresonant hollow-core fibers guide light with ultra-low data loss. The researchers' analysis provides a clear explanation for the phenomenon observed in practice, where a hollow-centered optical fiber incorporating glass filaments causes minimal light loss. This breakthrough could lead to the development of new designs for hollow-core fibers that maintain ultra-low data loss, improving the efficiency of optical communication and other applications such as imaging and sensing.