China's first femtosecond laser device with an output of 300TW?¨3?á1014W?? has been recently put into successful operation in Mianyang, Sichuan.  The new laser device has incorporated a range of latest research findings on femtosecond and high power solid laser technology, with its overall performance and technical indicators reaching an internationally advanced level. Researchers developed innovative technical means for accurate tuning of the pulse compressing system, and introducing for the first time the super Gauss transmission technology into the femtosecond laser system, which brings out the best light beam focus and pulse compressing properties among its international counterparts. The new system is designed with three-level outputs for 5TW, 30TW, and 300TW, with each level being equipped with an experimental target chamber, desirable for diverse research needs. Developed in early 2004, the system has provided rounds of target operation for lab experiments, and stood the long time tests for high power output. It is currently the only femtosecond laser device in the world that can work steadily at the hundred TW output level.

The 300TW laser device has attracted great attention of international peers. Chinese scientists have made several rounds of international cooperation in the field. The successful and stable operation of the system marks China?¯s leading technology and engineering capability in the field.