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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.

Apr 16Thu
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry59

    Changchun Institute of Optics and Mechanics MTC-Designed Quantum Cascade Laser Achieves 1.2 µm Ultrabroad Lasing Spectrum at Room Temperature

    A team led by researcher Meng Bo at the Changchun Institute of Optics and Mechanics published a paper in Light: Science & Applications proposing a multistate-to-continuum (MTC) active-region design based on diagonal transitions, and used MOCVD to grow a mid-infrared quantum cascade laser with a single active region and an ultrabroad gain spectrum.

    Why we recommend it: The diagonal-transition design from multiple states to continuum states lets several transition channels contribute gain simultaneously. The original text gives lasing spectral widths of 1.2 µm at room temperature and 1.93 µm at 80 K, directly relevant to applications such as mid-infrared frequency combs.

Jul 10Wed
  1. Guangdian Hui · BriefsOptics industry57

    Canada Plans CAD 120 Million Investment Over Five Years to Build National Chip Network

    Canada has announced it will invest CAD 120 million over five years to support the CAD 220 million Fabric project led by CMC Microsystems, helping startups commercialize their technologies. The project will subsidize prototype production, provide cheaper tools, software and training, and offer up to CAD 10 million in funding for semiconductor, superconductor, smart sensor and photonic hardware development.

  2. Guangdian Hui · BriefsOptics industry60

    Progress in Passively Mode-Locked Laser Technology with Ring Cavities at Suzhou Institute of Nano-Tech

    A team at the Suzhou Institute of Nano-Tech, Chinese Academy of Sciences, has developed a theoretical model for PML-SRLs, revealing that operating states are governed by the temporal balance of gain and loss. The model combines time-domain traveling-wave equations with partial differential equations for carrier density, examining the relationship among SOA carrier accumulation rate, SA carrier lifetime and ring-cavity round-trip time. The work, published in Optics Express, also found that an SOA with a narrow gain spectrum and a short resonator configuration can merge output pulses to yield high-energy optical pulses.

    Why we recommend it: Putting gain, absorber and cavity round-trip time into a unified dynamic model offers transferable design insight for understanding mode-locking states and pulse merging in semiconductor ring cavities.

Aug 10Thu
  1. Guangdian Hui · TrendsOptics industry53

    Laser Industry Map: Fujian Province - Success Through Hard Work

    Fujian's laser industry is anchored by upstream crystal materials, laser sources and precision optical components, with more than 200 companies clustered in Fuzhou's optoelectronic information supply chain. Fujian Castech Crystals, Haichuang Optoelectronics, Zhongke Guanghui and Fuzhou Focuslight respectively specialize in optical crystals, LiDAR light sources, fiber lasers and precision optical components. Regional development is also supported by manufacturing demand, cross-strait cooperation with Taiwan, research institutions and local policies.

Jul 7Fri
  1. Guangdian Hui · TrendsOptics industryOptics and AI61

    Suda Weige Delivers Large Direct-Write Lithography System, Plans to Sell 100% of Huarisheng

    Suda Weige announced the successful delivery of an independently developed large direct-write lithography system for lithographic manufacturing of materials used in photonic chips, optical communications and optical chips. The system supports real-time 3D navigation autofocus on large-area substrates, proximity effect compensation during exposure and other functions. Several more large lithography system contracts are awaiting delivery. The company also plans to transfer 100% of Huarisheng for 550 million yuan, concentrating resources on micro- and nano-optics equipment and materials.

    Why we recommend it: The equipment delivery and the planned exit from the reflective materials business together show a path of concentrating resources in micro- and nano-manufacturing, useful for understanding Suda Weige's technology portfolio and commercialization direction.