Randomly distributed feedback fiber laser based on Raman gain, its output spectrum has been confirmed to be wide and stable under different environmental conditions, and the lasing spectrum position and bandwidth of the half-open cavity DFB-RFL is the same as the added point feedback device The spec......

Ultra-long distance non-relay optical transmission has always been a research hotspot in the field of optical fiber communication. The exploration of new optical amplification technology is a key scientific issue to further extend the distance of non-relay optical transmission.

Scientists have developed a new type of laser that can generate a lot of energy in a short period of time, which has potential applications in ophthalmology and heart surgery or fine materials engineering. Professor Martin De Steck, director of the Institute of Photonics and Optical Sciences at the ......

Semiconductor laser has the advantages of small size, light weight, high electro-optical conversion efficiency, high reliability and long life. It has important applications in the fields of industrial processing, biomedicine and national defense.

Since Maman first obtained laser pulse output in 1960, the process of human compression of laser pulse width can be roughly divided into three stages: Q-switching technology stage, mode-locking technology stage, and chirped pulse amplification technology stage. Chirped pulse amplification (CPA) is a......

In the mid-1980s, Beklemyshev, Allrn and other scientists combined laser technology and cleaning technology for practical work needs and conducted related research. Since then, the technical concept of laser cleaning (Laser Cleanning) was born. It is well known that the relationship between pollutan......