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Research on the Key Equipment of Pof Lan

Author: WuHuiHui
Tutor: LiRongYu
School: Shanghai Jiaotong University
Course: Electromagnetic Field and Microwave Technology
Keywords: LAN plastic optical fiber POF transceiver POF optical NIC
CLC: TN929.11
Type: Master's thesis
Year: 2011
Downloads: 50
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Abstract


The rapid development of communication services surges in demand for communications bandwidth. Compared with the high-speed and wide-bandwidth core network, the speed of local area network (LAN), should be accelerated and the broadband must be widened. Plastic optical fiber (POF) is one of the best transmission mediums for high-speed LAN due to its wide bandwidth, anti-interference, easy-coupling, low weight, low total cost and simplicity to install and construct. So far, POF have received catholic concern and devices for implementation of POF LAN, have become a prevailing research topic.POF transceivers and POF network interface card are the key devices to build the POF LAN. Optical transceiver is used for switch between the optical signal in POF and the electrical signal in twisted pair line, while the optical network interface card (NIC) is used to connnect computers with POF in order to achieve photoelectric conversion. In this thesis, the two devices are studied theoretically and experimentally. The most appropriate chips are selected according to their operation principles, and the POF transceivers and NIC are then successfully designed by using these chosen chips. In addition, based on the POF NIC hardware, the NIC software driver is programmed to facilitate the computer identification and access. This software driver is designed according to Network Driver Interface Specification (NDIS) Miniport NIC-driven framework and works in the Windows operating system to ensure the correct data transmission between computer and NIC.Finally, experiments are conducted to test the transmission performance of the POF transceivers and POF NIC. A 60-meter long PMMA POF with 1mm diameter is used as the transmission medium. The measurement results show that, working at 100Mbps, the system of POF transceiver can transmit correctly and the computer of the optical NIC can access to the internet at 100Mbps correctly. The results mean the designed devices can work well at 100Mbps and meet the demand of high-speed LAN completely. The successful design and development of POF transceiver and NIC are of practical significance for the spread of POF in local area network applications.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications > Optical fiber communication
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