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Oct 14Wed
  1. Optica News CenterOptics industry66

    Chip-Scale Optical Ring Laser Gyroscope Measures Slow Rotations of 37 Degrees per Hour

    A team from UC Santa Barbara and Caltech published in Optics Letters a chip-scale optical ring laser gyroscope capable of measuring rotations as slow as 37 degrees per hour, approaching Earth's rotation rate of 15 degrees per hour. The device is based on a low-noise Brillouin laser in a silicon nitride waveguide photonic integrated circuit, can be fabricated with standard CMOS processes, requires only milliwatt-level optical power, and offers nearly 2,000-fold higher sensitivity than the team's earlier device.

    Why we recommend it: Compared with the team's earlier silicon nitride Brillouin gyroscope rated at 72,000 degrees per hour, this is nearly a 2,000-fold improvement, helping gauge how far on-chip optical gyroscopes are from navigation applications.

Aug 26Wed
Jul 31Fri
  1. Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesOptics industry61

    Configurational Entropy Engineering Enables Ultra-Broadband Luminescence in Bismuth-Doped Glass Fiber

    SIOM has proposed a configurational entropy engineering strategy that enables ultra-broadband luminescence in bismuth-doped glass fiber.

    Why we recommend it: The source provides specific data and details that help assess actual progress in this direction

Jul 24Fri
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industryOptics and AI47

    Changchun Institute of Optics, Fine Mechanics and Physics Dual-Modal Neuromorphic Device Uses Optical Signals to Boost Machine Olfaction Gas Classification Accuracy

    A team led by researcher Li Shaojuan at the Changchun Institute of Optics, Fine Mechanics and Physics has developed a vision-olfaction dual-modal neuromorphic device based on a MoS2/SnS2 floating-gate heterostructure. The device responds to both optical and gas signals and fuses them at the device level. The results were published in Advanced Materials. The device has an active area of 148 µm² and static power consumption of 3.4 µW. With the optical modality introduced, classification accuracy for 12 gases rose from 52.24% to 98.27%, while recognition accuracy for 51 gas mixtures reached 89.32%.

May 6Wed
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry54

    Changchun Institute Proposes 8-Channel Complex-Coupled DFB Laser Array for Near-Infrared Gas Sensing

    A team led by Academician Wang Lijun at the Changchun Institute of Optics, Fine Mechanics and Physics, together with Zheng Chuantao's team at Jilin University, published a paper in Optics and Laser Technology proposing an 8-channel complex-coupled DFB semiconductor laser array based on high-order surface gratings and periodic current injection, requiring neither epitaxial regrowth nor nanoscale lithography.