Iron Triangle releases fiber Bragg gratings and arrays based on multi-core fibers

Main author: Yanming Zhang, Wentao Yana*The first unit: National University of SingaporePublished Journal: Acta MaterialiaResearch backgroundIndustry pain point: Although laser powder bed melting (LPBF) technology can manufacture complex components, the lack of consistent product quality is still the core bottleneck restricting its industrial application. Research has shown that up to 35% of proce...

Recently, Associate Researcher Zhang Junyong from the High Power Laser Physics Joint Laboratory of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, together with Professor Zhao Yongpeng's research group from Harbin Institute of Technology and Professor Zhan Qiwen's research group from Shanghai University of Technology, completed the experimental verification of 46....

In the fields of optics and micro/nano processing, precise manipulation of lasers to meet the growing demand for miniaturization is an important challenge in driving the development of modern electronic and biomedical equipment. Recently, researchers from Tohoku University in Japan successfully demonstrated the use of interference technology to enhance the longitudinal electric field of radially p...

When it comes to additive manufacturing, some people may not have heard of it, but when it comes to its other name: 3D printing, no one is unaware.In fact, the name 'additive manufacturing' better illustrates the essence of this processing method. From ancient times to the present, humans have put in great effort to achieve the goal of processing 'raw materials into the shapes we need'. From the S...

The pump source, gain material, and resonant cavity are the three elements that make up a laser. Due to the selective effect of the resonant cavity on the lasing frequency, multi longitudinal mode operation is one of the characteristics of fiber lasers based on traditional resonant cavity structures, manifested as periodic beat peaks in the radio frequency (RF) spectrum and periodic fluctuations i...