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关于光纤光缆市场现状问题讨论

来源: 时间:2017-01-05 11:46:05 浏览次数:

International

     Optical fiber cable market situation in China As a surge in the global Internet users, a variety of the growth of the broadband business requirements, the optical fiber cable market has entered a new period. According to KMI, the latest data show that in 2000 the global core optical fiber usage of more than 90 million kilometers, 2001 world fiber core demand will exceed 120 million kilometers, the world's expansion has invested, fiber optic cable factory to meet the growing demand. Optical fiber usage in the asia-pacific region in 2000 accounted for 28% of the world market. China is the world's third largest fiber market, by the end of 2000, the national total laying optical cable has amounted to 2 million kilometers of route. At present, it is generally believed that in 2001 the domestic core optical fiber demand will reach 10 million km. For domestic operators, on the one hand, is about to join the WTO, to continuously strengthen their own construction, strong self, to adapt to the future global competition, enthusiasm is very high demand for optical fiber, optical fiber cable. On the other hand, as the global shortage of fiber optic fiber cable prices, causing the rising cost of network construction, we believe that this to a certain extent will affect the enthusiasm of operators author.

     Second, the current situation of the shortage of fiber will last

Due to the rapid growth of global demand for optical fiber, optical cable, in 2000 to form the shortage of fiber. At present, the fiber optic cable manufacturers around the world investment expansion, shown below for KMI predicts 2002 the world's largest fiber manufacturers of fiber production capacity: if all the major manufacturers can achieve forecast production, fiber tension will be eased. Although domestic fiber drawing manufacturers made a great progress in the past few years, the manufacturer has reached 10, still cannot affect the shortage of recent domestic optical fiber. Under the current domestic and expansion of optical fiber manufacturers more than ten, but along with the rapid expansion of the world's leading production will soon form fiber oversupply situation, fiber prices will fall, so now need careful investment fiber industry.

     Third, telecom operators in the "15" during the market demand

At present domestic main operators are: telecommunications, radio and television, mobile, unicom, netcom, electric power, military network, tietong, JiTong, etc. With the development of optical communication technology, especially the application of WDM technology, increase the light path not infinite and expand the amount of fiber optic cable, speculated that "15" during fiber use, should be in 10-15% annual growth rate during the period of "15" telecommunications, radio and television as well as the emerging mobile, unicom, netcom, such as market share will be leading the way. Unicom in 2000 the share of the fiber optic cable used for the first time China telecom. Is gradually formed the situation of open competition among operators, we are listed in the table below to "15" during the occupancy of fiber optic cable to estimate:

     Forth, G655 fiber will become a hot point recently optical fiber cable market demand and China G655 optical fiber market

Although domestic experts suggest G655 optical fiber at the expense of the 1.28 mu m - 1.51 mu m within the scope of the wavelength resource, there are some limitations. But because the future telecom network is 10 gb/S or even 40 gb/S on the basis of large transmission capacity of WDM systems, and higher G655 fiber dispersion requires high dispersion compensation costs, make the system costs rise, to effectively support economic 10 gb/S and the 40 gb/S transmission of signals. G655 fiber on the one hand, in the C band (new G655 fiber will use the band to l-band) has low dispersion value, can support a 10 gb/S (40 gb/S) transmission distances without dispersion compensation; And zero dispersion values on the other hand, can restrain nonlinear phenomena, such as four-wave mixing is suitable for WDM systems. Because the G655 fiber can simultaneously meet the needs of the TDM and WDM two development directions, it will become a fiber optic cable market, especially the network of the construction of the main hot spots.

     At present domestic G655 fiber use mainly rely on import, including has entered the domestic market of corning's LEAF fiber, lucent "sharp" fiber as well as the Japanese PUREGUIDE fiber, such as domestic only yofc "big protect solid" fiber holds some G655 market share; Efforts to develop and produce domestic G655 fiber, with the future market, facing the domestic fiber manufacturers are both opportunities and challenges.




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