The Rapid Development Of Plastic Optical Fiber Communication Technology

Beginning in the 1990s, the rapid development of communications technology, mobile communications, satellite transmission and optical fiber communications have transformed communications into high-speed, large-capacity, digital and integrated multimedia services. Promoted by ITU-T, various standards for optical fiber communication have been formulated, such as PDH, SDH, DWDM, AN, and B-ISDN. Therefore, the United States first proposed the idea of establishing a national information superhighway: National Information Infrastructure (NII). After that, various countries formulated plans and launched a global information technology construction plan (GII). In the 1970s, optical fiber networks were mainly used in large-capacity business areas such as the city. In the 1980s, they developed into long-distance trunk lines outside the city, and gradually extended to users in the 1990s. The so-called FTTx application, that is, fiber to the roadside (FTTC), to Building (FTTB), fiber to apartment (FTTA), and fiber to the home (FTTH). At present, there are also economic methods that use cable to the home (such as: CABLE MODEM and ADSL technology). Fiber to the home refers to the use of optical fibers in the final access network stage from the trunk network to the community and between users to realize voice, data, broadcast and television. An access method for various intelligent system functions is conducive to the integration of network functions and various resources. Fiber-to-the-home is being promoted all over the world. Japan has the highest penetration rate of fiber-to-the-home. The number of users reached 2.5 million at the end of last year and is expected to reach 4 million by the end of this year. The United States began to exert efforts at the end of 2004. As of March this year, the line construction has covered 1.6 million users, and the actual number of business opened is close to 200,000. South Korea, which leads the world in online games, also has high expectations for fiber-to-the-home. Since 2003, Korean telecom operators have successively increased investment in fiber-to-the-home. Since 2005, broadband investment has been in fiber-to-the-home. Become the mainstream. The South Korean government predicts that by 2010, the penetration rate of FTTH households will reach 70%. Europe's Britain, Germany, Sweden, etc. are all accelerating the development of fiber to the home.