Researchers from the Changchun Institute of Optics, Fine Mechanics and Physics developed a new dual-wavelength pumping strategy that could significantly improve the efficiency of 3.9 μm mid-infrared fiber lasers. By optimizing how energy is transported inside holmium-doped fluoroindate fibers, the study offers a practical route toward reducing laser threshold, minimizing thermal damage, and enhancing the performance of advanced infrared laser systems.
Researchers from the Changchun Institute of Optics, Fine Mechanics and Physics developed an advanced optical remote sensing method that significantly improves soil moisture prediction under complex environmental conditions. The new approach offers a more reliable way to monitor soil water content across mixed soil types, varied observation angles, and changing field conditions—an important step for precision agriculture, water management, and ecological monitoring.
Researchers from the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of the Chinese Academy of Sciences developed a new wear threshold model for diamond ruling tools that significantly improves the precision and stability of manufacturing high-performance echelle gratings.
Researchers from the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of the Chinese Academy of Sciences developed a new grating interferometer design that significantly improves measurement stability under large three-dimensional angular misalignments.
A study by the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, titled "Ultra-broadband single-stack mid-infrared semiconductor lasers grown by metal-organic chemical vapor deposition," published in the journal Light: Science and Applications, reports a multi-state-to-continuum active region design and achieves ultra-broad emission spectra for mid-infrared light sources.
A study by the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, and the University of Chinese Academy of Sciences, titled "Hole-pillar coupled structure: a universal design model for two-dimensional gratings fabricated by dual-beam interference lithography," published in the journal Photonics Research, reports a coupled design approach for optical structures. The fabricated gratings exhibit diffraction efficiencies above twenty percent under normal incidence at 670 nanometers.
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