【正文】 s FTTH access technology to promote the urgent need for universal access. Actively guide and cultivate the market demand,the formation of the ecological industry chain According to CNNIC 16thChina Internet Development Statistics Reportshows that the current user39。s current telemunications licensing system,FTTH to provide users with prehensive business Access will be very difficult,which undoubtedly will seriously impede China39。introduce relevant encouraging policies to promote the building of fiber to the home。s national conditions and standards,including architecture,fiber type,using the wavelength,the convergence layer transmission technology,interface requirements,performance indicators,performance monitoring,network management,the key indicators of optical ponents and modules,installing operating early development of the building include indoor fiber optic cabling requirements to guide the construction of new buildings for FTTH applications,leaving room addition,FTTH access the application once again brought up the right to lay lines,petitive environment,how to avoid redundant construction problems,which the telemunications law or telemunications regulations should be standardized. FTTH in the domestic building,development,known asthe father of China39。s Internet users. Government policies and regulations is lagging behind the standards have not yet issued At present,China to promote the development of FTTH in the fragmented nature of the basic state of the various local government policies vary,scattered broken in some places it is still not encourage preferential short,government guidance and the lack of a sound macroindustrial addition,the Internetrelated copyright laws and regulations are also a lot of work to do. Although the International Telemunication Union and the United States have published on the FTTH standards,but how do we bine their own actual situation,to develop FTTH technical specifications and construction standards are still to be done,these are as far as my FTTH toward mercial constraints. Development Prospects Of China39。s five cities in the status quo and impact of Internet usage survey report,users often use online services to read news,search engines,,the bandwidth required for these services is small,and the highbandwidth services such as video conferencing,VOD,multimedia entertainment use of the low ,in ADSL can already satisfy the current bandwidth usage of the market environment,highbandwidth services,demanddriven and popularization of the situation will take time. In the broadband industry,content providers,network operators,endusers to build an application service products value the operating level,is under a large number of software developers,device manufacturers,system integrators,and and their associated government,finance,media,marketing,consulting and services to build a plete industrial the various links on the joint industry chain,to build abroadband industry ecosystemrequires time and effort. FTTH operators do not actively into the development of another constraint FTTH should be constructed on the question of who can not be just who should be built by the construction party itself or by an operator is selected by a building operator or by the government to decide,in the FTTH,before the widespread these problems to be ,at this stage to promote FTTH development is still at an experimental stage,yet the actual businessoriented,and in the promotion process,FTTH broadband access technology as a form of xDSL in the domestic market,strong petition,with the xDSL petitive internal resource allocation at a relatively disadvantageous position,affecting investment in FTTH operators,not only sporadic testing program,and more from the big cities of the resident operatorled,the lack of Japanese carriers like prehensive resource integration and promotion,resulting in demonstration project of a multivendor or from the optical munication over other telemunications service providers,operators,pared with a passive role,in the absence of the strong support of operators,the domestic FTTH promotion efforts has not been strong. Technology and cost bottlenecks First,from a technical level,at present widely used ADSL technology to provide broadband services have certain advantages,as pared with the FTTH,the price cheap,the use of the existing copper wire network to make the construction simple,the current 500kbit/s~1mbit/s Video program can still meet demand,is the promotion of FTTH is currently a major petitor. From a global perspective,in broadband users,66%of users using xDSL,in China,this ratio is as high as 90%.Broadband access as an ideal way of FTTH,has not been largescale development of the most important reason is that the cost of optical access is still relatively devices due to the constraints of high cost and other factors,FTTH difficult to spread,we are only in the backbone network using optical fiber transmission,while in thelast mileaccess level of adoption of Ethernet and other access Jian Shuisheng Academy said,the development of lowcost optoelectronic devices to achieve the important task of fiber to the home. In Japan,FTTH and ADSL over the price to be petitive,the burden of Japan39。s FTTH industry,the main issues the following points. Foster the development of market demand and the formation of the industrial chain still need time FTTH In addition to providing highbandwidth,but more important is what the operators can provide specific services that allow users to demand higher bandwidth,making the existing broadband access technologies can not be met under the promotion of the user towards ,according to this year39。s largest FTTH market,accounting for %of the total global market(ie,12 billion ).Chinese market in the Asia Pacific region will account for nearly half(46%).China and India in the next few years will be the major investors in China,PON deployme