First domestic high repetition rate ultrashort pulse laser

On 7 February 1985, certification tests were conducted on the High Repetition Rate Ultrashort Pulse Laser. Experts at the meeting pointed out that this was China's first prototype high repetition rate ultrashort pulse laser. Its performance is higher than that of similar lasers in this country and is comparable to the advanced standards of foreign products. The energy of the pulse train of this laser is greater than 8 mJ; its single pulse width is 32 ps; its pulse stability is + or - 2 percent at 10 pps and + or - 4 percent at 33 pps; and its mode locked probability is 100 percent. The repetition rates are 10 pps, 20 pps, and 33 pps. The laser not only has a smooth pulse waveform, but its operation is stable and highly reliable. The high repetition rate ultrashort pulse laser is a valuable tool in the study of ranging and spectral techniques; it can be used to improve the measurement accuracy of ranging devices on third generation artificial satellites, and to increase the time resolution of laser spectral analysis.