| With the advent of the information age,the level of science and technology of people is improving day by day,and the requirements for the quality of life are also raised.Therefore,the traditional network bandwidth can no longer meet the needs of people's work and life,and people pursue faster.Use of less difficult,more secure network bandwidth services.For the network bandwidth technology,it not only enriches its content,but also promotes the speed of information dissemination and the dissemination of high quality information as its fundamental goal,so that it has excellent extensibility and control.Because the strategy of the communication operators in the choice of access network is gradually changing.It is precisely because of the strong business demand that operators have to choose optical access network to replace copper wire access network,thus improving the quality of users' access to the Internet.Fiber optic has become the mainstream media of information communication at present because of its large amount of information,wide bandwidth,stability and good compatibility.From two aspects of system configuration and access equipment,fiber optic access network can generally be divided into two kinds,namely active optical network and passive optical network.The so-called passive optical network is actually a communication technology that can realize one-to-many access network.It consists of three parts: optical network unit,optical line terminal and optical distribution network.Nowadays,the main technology of active optical network is dominated by EPON and GPON.During the communication between the two technologies,the integrity and stability of information transmission are high,and the price is relatively economical and has a high performance-price ratio.It is the most widely used PON technology in the market today.In this thesis,GPON is the main research object.In the front half In part,the author interprets the concept of GPON,compares it with EPON,and finds out their strengths and weaknesses,and looks forward to the undeveloped PON.Combined with specific cases,the author discusses the role of GPON in the construction of modern communication system,which covers how to design the network of the technology,the specific scheme of communication engineering construction,and after that,Select the specific community to study,according to the actual situation of the community to formulate a specific implementation plan,so as to complete the case design.Under the writing of this thesis,the author has a certain knowledge of GPON technology.It also provide some theoretical support for the subsequent application. |