The 12th International Symposium on Photonics and Optoelectronics (SOPO 2019) will be held from August 17 to 19, 2019 in Xi'an, China. SOPO 2019 is co-organized by Wuhan University, Beijing University of Posts and Telecommunications, IPOC State Key Lab, Liaocheng University and other institutions.

SOPO is an annual conference in China since 2009. It was held in Wuhan, Chengdu, Shanghai, Suzhou, Xi’an, Beijing, Guilin, Sanya and Kunming from 2009 to 2018. Each year there are 100 - 200 attendees from Asia, Europe, America, etc., and there have been quite a lot of well known experts giving plenary speeches. In 2019, SOPO will be held from August 17 to 19 in Xi'an, China. It dedicates to facilitating the global development of Photonics and Optoelectronics and exploring ways in which the latest research results can be shared. 

Xi'an, is the capital of Shaanxi province, located in central-northwest China, records the great changes of the country just like a living history book. Called Chang'an (meaning the eternal city) in ancient times, it is one of the birthplaces of the ancient Chinese civilization in the Yellow River Basin area. As the eastern terminal of the Silk Road and the site of the famous Terracotta Warriors of the Qin Dynasty, the city has won a reputation all over the world. More than 3,000 years of history including over 1,100 years as the capital city of ancient dynasties, have endowed the city with an amazing historical heritage. Visitors marvel at the numerous historical sites and cultural relics in and around the city. Read more about History. Known as the leading city of China's Western Development Drive Program since 1990s, Xi'an is an important economic, cultural, industrial and educational center of the central-northwest region, providing visitors with modern and convenient facilities.