随着数字电视、IPTV等高带宽多媒体应用的普及,FTTH作为新一代光网络接入技术已成为热点技术。光纤到户(FTTH)这一概念的发展基本经历了3个阶段:第一阶段始于上世纪70年代末,法国、加拿大和日本进行了世界上第一批FTTH现场试验;第二阶段为1995年左右,主要是美国和日本进行了BPON的研究和实验。中国在上世纪90年代中后 With the popularization of high bandwidth multimedia applications such as digital TV and IPTV, FTTH has become a hot technology as a new generation of optical network access technology. The concept of fiber to the home (FTTH) has basically gone through three stages: the first stage began in the late 70s of last century, France, Canada and Japan conducted the world’s first FTTH field trials; the second stage of 1995 Years or so, mainly the United States and Japan conducted BPON research and experiments. China in the late 90s of last century