The hottest plastic optical fiber is a new materia

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Plastic optical fiber has attracted much attention as a new material

at present, plastic optical fiber has attracted much attention because of its simple manufacture, low price, fast connection and other advantages. Plastic optical fiber 3 Width of impact hammer: no less than 200mm, which was first studied by some universities and companies in Japan, the United States and other developed countries, and then became a new generation of short-range optical transmission medium. Plastic optical fiber is mainly used in low-speed and short-distance transmission. It has a good development prospect in the fields of automobile, consumer electronics, industrial control bus system and interconnection, especially suitable for local medium and short-distance communication, cable TV and indoor computer transmission

1 development of plastic optical fiber

plastic optical fiber (POF) has a research history of more than 30 years. It was first used in lighting, and then gradually promoted in the fields of automobile, medical treatment and industrial control. Recently, it has also made a breakthrough in the field of communication

in the early 1970s, DuPont began the basic research work of plastic optical fiber for user data communication

in 1987, DuPont sold all its plastic optical fiber product patents to Mitsubishi Rayon Co., Ltd. Mitsubishi Rayon Co., Ltd. continues to develop, promote and apply plastic optical fiber products. In the same year, the step index distribution plastic optical fiber developed by the French plastic optical fiber union group has a bandwidth of 5MHz · km

in 1992, Bates of IBM company of the United States proposed the test of 50Mbps transmission on 100m long step folded plastic fiber that can eliminate white pollution emissivity distribution. Kombo Koike and others reported the transmission test of 2.5Gbps on 100m long plastic fiber with infrared laser

in 1998, Yamasaki of NEC company of Japan conducted 400kbps transmission test on 70m long plastic optical fiber. The attenuation of fluoride plastic optical fiber with gradient refraction distribution is only 1/3 of that of doped polymethylmethacrylate plastic optical fiber, reported by Fujitsu Corporation of Japan, Imai, with 1 three μ MFP LD and in GaAs APD were used as light sources, and 2.5Gbps experiments were carried out on fluoride plastic fiber with 200m gradient refractive index distribution

at present, plastic optical fibers are used in low-speed and short-distance transmission. Recently, the development of POF technology, which needs to choose a larger range for experiments, has increased the bandwidth to 3GHz. Newly developed annual mode POF, optical amplifier in POF, pair 1550nm. New POF materials with low loss to select the gear to be detected (150kn or 300KN) and higher power and faster light sources make the applications of optical fiber distributed data interface (FDDI), asynchronous transfer mode (ATM), enterprise system connection architecture (ESCON), optical fiber channel (FC), synchronous optical fiber (SONET) involve the field of plastic optical fiber

however, this medium is not recognized by the standard at present, because the available technologies are limited to 50m under the required bandwidth. Perhaps five years later, the low-cost POF will be commercialized

2 the application of plastic optical fiber

the reduction of network cost, the improvement of performance (faster), the introduction of digital electronics, the reduction of electromagnetic interference and the formulation and improvement of relevant standards are promoting the rapid development of telecommunications, consumer electronics, automotive and industrial control markets, and the progress of these four markets has promoted the plastic optical fiber technology to gradually become the mainstream of the optical communication industry. At the same time, POF technology also has attractive charm in low loss, high performance, fluorinated polymer gradient index plastic optical fiber and new light sources

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