VAD (Vapor Axial Deposition) of optical fiber preforms is a key technology in optical fiber manufacturing. The quality of the preform directly affects the performance of the final fiber. VAD deposition is widely used to manufacture various fibers, especially high-performance fibers such as specialty fibers and communications fibers. Optical fiber preforms deposited using VAD technology generally offer excellent transmission performance and low loss, making an important contribution to rapid advances in high-speed modern communications. Equipment components: deposition chamber: 1 set; evaporation cabinet: 1 set; gas cabinet: 1 set; exhaust-gas treatment unit: 1 set; electrical control system: 1 set.
| Parameter | Value |
| Quantity per deposition run | 1 pieces |
| Number of burners | 2 items |
| Maximum deposited-soot-body diameter | Φ200mm |
| Maximum deposited-soot-body length | 1300mm |
| Preform diameter | Φ90mm |
| Maximum deposited weight | 11kg |
| Deposited-weight error | ±0.1kg |
| Deposition rate | 10g/min |
| Deposition efficiency | 60% |
| Number of bubbles within 1mm [Within 1mm] | ≤5 |
| Raw materials used | SiCl4\SiGe4\H2\O2\Ar2 |
Uniformity: the VAD process achieves high-quality deposition, forming uniform optical fiber preforms and reducing defects. Controllability: material composition and deposition rate can be precisely controlled to adjust the optical properties of the resulting fiber. High purity: because the gaseous compounds used can decompose at high temperatures, VAD technology can generally produce high-purity silicon or germanium materials.
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Hong'an Group Co., Ltd., founded in 1985, is located in Weihai City, Shandong Province. The factory covers an area of 1 million square meters, with a building area of 400,000 square meters. Its main products include optical fiber preforms, optical fibers, optical cables, optical jumpers, data cables, communication cables, communication equipment, optical devices, etc. It is one of the backbone enterprises in China's optoelectronic communication cable industry. Products are sold well to mainstream domestic operators and exported to Europe, America, and countries and regions along the "Belt and Road", enjoying a wide reputation in domestic and international markets.
The group company has a broad business layout, with multiple wholly-owned, controlled, and joint ventures such as Weihai Changhe Optical Technology, Weihai Weixin Optical Fiber Technology, Changhe Optical Cable, Hong'an Communication Cable, Hefei Bangnuo Technology, etc. At the same time, the group has strong R&D strength and has built a multi-level innovation platform system, including a national-level postdoctoral research workstation, a nationally accredited CNAS laboratory, as well as provincial-level enterprise technology centers and provincial-level engineering laboratories, and has multiple municipal-level R&D institutions covering engineering laboratories, engineering technology research centers, and industrial design centers.
For a long time, the company has fully implemented the three major strategies of technological innovation, talent development, and export-oriented development, always adhering to science and technology leading enterprise development, through the introduction of advanced production equipment to digest, absorb, and then innovate and create, greatly enhancing independent innovation capability, and continuously providing high-quality and stable products and services to more than 100 countries and regions.