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A project at Macquarie University has demonstrated a way to narrow the linewidth of a laser beam by a factor of over ten thousand.Published in APL Photonics, the technique offers a promising route toward ultra-narrow linewidth lasers for potential use in a wide range of pump-pulse systems.Laser linewidth measures how precisely a beam of light maintains its frequency and color purity, and narrow-li...
Us researchers report 8.1 μm wavelength quantum cascade laser (QCL) grown on silicon (Si) by MOCVD [S. Xu et al., Applications. Physics Letters, v123, p031110, 2023]. "There are no previous reports of QCL growth on silicon substrates by metal-organic chemical vapor deposition (MOCVD)," commented the team from the University of Wisconsin-Madison, the University of Illinois at Urbana-Champaign an...
IntroductionVortex beams carrying orbital angular momentum (OAM) are widely used for high-throughput optical information multiplexing, and achieving on chip, small-scale vortex lasers is crucial for promoting the industrial implementation of vortex light reuse technology. Recently, Gu Min, an academician of Shanghai University of Technology, and Fang Xinyuan, an associate professor of Shanghai Uni...
Ensuring the integrity and quality of the welded hair clip is crucial in the assembly of electric motors. Usually, 160 to 220 hair clips are welded to each motor, and the accuracy of these welds directly affects the overall quality of the stator and motor. The traditional method of detecting these welds is difficult to balance the requirements of safety and accuracy, which often leads to damage to...
In the era of speed and precision, the field of thin and medium plate processing is experiencing a revolutionary transformation. Today, let's explore a remarkably fast tool -- BWT’s Lightning 3000W@34μm fiber laser, and witness its impressive performance.On busy production lines, this product is completing complex cutting tasks at astonishing speeds. Its high-speed, high-efficiency, and high-quali...