Mao Qian: 10 Gigabit broadband is no longer a luxury, and exclusive wavelength solutions have more advantages. News on June 16 (Nanshan) At the 2023 China Optical Network Seminar recently held, Mao Qian, advisor to the Communications Science and Technology Committee of the Ministry of Industry and Information Technology, director of the Asia-Pacific Optical Communications Committee, and co-chairman of the China Optical Network Seminar, gave a speech saying that China has the largest number of broadband users in the world, with a penetration rate of about 90%, and there is still room for new users. According to statistics, my country's annual demand for new residential units is 10-11 million units. In fact, there are 20-30 million new units, including improvement needs. These new households are potential users of broadband. In addition, according to MIIT data, there will be 23,800 new small, medium and micro enterprises in my country every day in 2022, which means the number of new enterprises will be approximately 9 million a year. These enterprises will all have broadband access needs. In addition, from a global perspective, broadband networks are still in a period of rapid growth, and there is no shortage of opportunities in overseas markets. Mao Qian pointed out that as living standards continue to improve and become more intelligent, and online offices/meetings/work interactions, etc., on the one hand, users have higher requirements for service quality, and at the same time, they still have long-term and continuous expectations for improvements in network speed, so it is still necessary to continuously increase access rates. On the basis of realizing Gigabit household access, 10 Gigabit household access will inevitably be proposed one after another. At present, my country's access network is a Gigabit network based on 10G PON technology. By the end of 2022, my country has built 110 Gigabit cities, accounting for one-third of all prefecture-level cities, and Gigabit optical networks have the ability to cover more than 500 million households. Mao Qian emphasized that in order to achieve Gigabit/10 Gigabit home access on a larger scale, not only EPON and GPON are not competent, but the coverage of 10GEPON and XGPON is not large enough and the efficiency is low. The evolution to 50GPON or even 100GPON is an inevitable trend. Judging from the current development trend, the industry prefers single-wavelength 50GPON. Various technologies supporting 10G broadband (such as 50G-PON and WiFi7) are also gradually maturing, and 10G broadband is no longer a luxury. Mainstream optical communication suppliers in China have already achieved 50GPON capabilities, and some have even implemented 100GPON, providing basic conditions for 10G to households. In addition, Mao Qian believes that currently FTTH uses a passive optical network solution, but after the access rate required by a single user increases to a certain level, such as 1Gbps, taking into account the decline in fiber prices, it may be more convenient, easier to upgrade, and lower cost for active optical networks to provide higher rates than passive optical networks. Mao Qian suggested that users with bandwidths of 10 Gigabit and above can consider bandwidth exclusive solutions, including exclusive user bandwidth for XG/XGS-PON, exclusive P2P fiber, and exclusive wavelength for NG-PON2, etc. Now it seems that the wavelength exclusive solution has more cost and technical advantages and will become a development trend. Of course, each technical solution has its own advantages and disadvantages, and it is impossible for one solution to replace all solutions. You can choose according to the actual situation