The three national 863 projects of Shanghai Opto-Mechanics Institute passed the acceptance

Three 863 projects undertaken by the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences: “Key technologies for the practical application of blue light high-density optical storage materials and devices”, “Development of 2μm output fluorophosphate glass fibers doped with rare earth ions” and “High-power fiber lasers” And core component research" was accepted by the expert group of the Ministry of Science and Technology.

The "High Power Fiber Lasers and Core Components Research" project undertaken by Zhou Jun's research group carried out research on key technologies and core components of high-power all-fiber lasers, and realized Erbium doped double-clad fibers, double-clad fiber gratings, and pump filters. The localization of the eliminator was developed; a continuous wave all-fiber laser prototype was developed with an output power of 230 W, a laser wavelength of 1080 nm, a spectral bandwidth of 0.24 nm, and a beam quality factor of M2=1.25. The project also carried out research on key technologies such as miniaturized seed light source, high-power optical isolator, and optical fiber end cap welding in pulsed fiber amplifiers, and developed an all-fiber pulsed fiber laser prototype with an average laser power of 103 W, repetition frequency of 50 kHz, and pulse width. 7.2ns, laser wavelength 1064nm, spectral bandwidth 0.84nm. The project applied for 7 invention patents, authorized 1 item; published 15 academic papers, including 9 SCI papers.

The "2μm output of fluorophosphate-doped fluorophosphate glass fiber" project undertaken by Zhang Junjie's project group carried out the compositional design of the rare earth-doped fluorophosphate and heavy metal oxide glass fiber materials, as well as the comprehensive characteristics of the materialization and luminescence of the material. Systematic research has led to the development of a new 2mm laser fiber optic material. The project developed a single-doped ytterbium double-clad germanate glass fiber, achieving a 2mm laser output of 1.12W. The ytterbium-doped glass was developed and the laser output of 346mW of 2μm-doped germanium glass microchip under LD pumping conditions was achieved, which laid the foundation for the further development of 2mm ultrashort pulse laser optical fiber materials. The project applied for 7 invention patents and published 31 academic papers, including 20 SCI papers.

The “Blue Light High-Density Optical Storage Materials and Devices Key Technology for Practical Applications” project undertaken by Yong Yongyou Group has designed and manufactured a new type of blue organic memory material that can be spin-coated, and its thermal, spectral, optical and film-forming properties can be achieved. Recording requirements for Blu-ray Disc recording materials. A multilayer optical disk structure was designed. A blue organic recordable optical disk was prepared on an off-line production facility. The storage performance was tested on a Blu-ray Disc standard test equipment. When the recording power was 3.3mW, the minimum recording spot size was achieved. 150nm dynamic recording and reading, reading signal carrier-to-noise ratio greater than 40dB, to achieve practical requirements. The project developed a new type of super-resolution mask material and recording material, studied the super-resolution performance of the super-resolution film layer structure and the matching with the organic recording layer, prepared a new type of blue-ray super-resolution optical disc, and realized recording and reading of 75-nm information dots. This laid the foundation for the development of next-generation ultra-high-density optical discs. The project applied for 5 invention patents and authorized 1 item; 13 academic papers were published, including 8 SCI papers.