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Fiber-optic cable makers begin mass production of preform rods

Posted: 01 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:Wuhan Changfei? Jiangsu Fasten Photonics? Hongzhou Futong Group? Nanjing Twentsche Fiber Optics? Tianjin Tianda Tiancai?

Local fiber-optic cable manufacturers in China, with the support of their government, have embarked on the mass production of preform rod, a key material in optical fiber manufacturing.

The fiber-optic cable industry in China has experienced growth in the past several years, posing a high demand for preform rods. However, the technology used to manufacture this product is limited to few developing countries because of the investment needed and the technologies involved.

According to the Institute of Semiconductor CAS, over 80 percent of the companies engaged in optical fiber and fiber-optic cable production buy preform rods abroad to carry out production. As a result, optical fiber companies, along with new entrants, have started to set up facilities to manufacture preform rods last year. Presently, five manufacturers in China produce preform rods, two of which are capable of mass production. These companies are Wuhan Changfei, Jiangsu Fasten Photonics Co. Ltd, Hongzhou Futong Group Co. Ltd, Nanjing Twentsche Fiber Optics Co. Ltd and Tianjin Tianda Tiancai.

Most preform rod manufacturers use the MCVD and PCVD process technologies, with a number creating their own techniques to enhance the process. Hangzhou Futong for one, has integrated and improved the OVD, MCVD, VAD and PCVD techniques to enable their own FSVD technology, which Hangzou says can manufacture large size perform rods directly from raw materials.

The high cost of adopting the sophisticated technology and technique to produce preform rods make it hard for new companies to enter the market. Thus, apart from support from local authorities, these new companies have resorted to cooperation with foreign makers to achieve success in perform rod manufacturing.

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