Solid laser with adjustable laser output state

Abstract

The invention discloses a solid laser with an adjustable laser output state, which belongs to the technical field of laser, and comprises a first resonant cavity, a first gain medium, a second resonant cavity, a second gain medium, a pump light source and a resonant cavity loss modulation module, the resonant cavity loss modulation module is used for adjusting resonant cavity loss; the loss of thesecond resonant cavity is reduced, and the absorption capacity of the second gain medium to first laser is improved, so that the gain of the second gain medium quickly reaches a threshold value and generates second laser, and the first laser and the second laser are both pulse output laser; the loss of the second resonant cavity is increased, the absorption capacity of the second gain medium to the first laser is reduced, the gain speed of the second gain medium is slowed down, and the first laser and the second laser are both continuous output laser. The laser is controlled to work in a continuous and stable pulse state, a stable multi-pulse state and a stable chaotic pulse state by controlling the absorption bleaching characteristic of the laser crystal with the saturated absorption characteristic in the built sub-cavity.

Description

technical field [0001] The invention belongs to the field of laser technology, and more specifically relates to a solid-state laser with adjustable laser output state. Background technique [0002] With the rapid development of laser technology, lasers are playing an increasingly important role in the fields of industry, medical treatment, communication, and national defense. In practical applications, it is often required that a laser can work in a variety of different states (stable continuous, stable pulse) and can achieve fast switching. This puts forward higher requirements for the design of the laser. [0003] In general, as a dynamic system, the laser usually works in a stable state in design, either a stable continuous state, or a stable laser output state. These two states can be effectively switched in actively Q-switched lasers. However, for the passively Q-switched lasers implemented by saturable absorbers, effective active control cannot be performed because ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a solid-state laser with adjustable laser output state, the purpose of which is to change the absorption capacity of the gain medium for laser light by controlling the loss in the resonant cavity, and then control the laser Output lasers in different states, thereby solving the technical problem that the laser cannot be effectively actively controlled in the prior art

Images