Magnetic control type stabilizing device for output power of all solid-state laser

Abstract

The invention discloses a magnetic control type stabilizing device for output power of an all solid-state laser, which is characterized by comprising a magnetic control type lens translation device, a completely reflecting mirror, a laser head of the all solid-state laser, an output lens of the all solid-state laser, a 45-degree laser partially reflecting mirror, a photoelectric detector and a controller, wherein the magnetic control type lens translation device drives the completely reflecting mirror of the laser to horizontally move so as to change cavity length; the 45-degree laser partially reflecting mirror is arranged outside a cavity and used for reflecting a small amount of lasers to the photoelectric detector; the photoelectric detector is used for converting collected optical signals into electrical signals and then sending the electrical signals to the controller; and the controller calculates a proper change of the laser cavity length by using internal programs and then sends corresponding drive electrical signals to accurately regulate the horizontal displacement of the magnetic control type lens translation device so as to drive the completely reflecting mirror to horizontally displace to change the cavity length, thus changing losses in the laser cavity, and compensating power fluctuation. By using the device provided by the invention, the effect of stabilizing the output power of the laser can be reached.

Description

Technical field [0001] The invention relates to the technical field of all-solid-state lasers, in particular to a magnetron-type all-solid-state laser output power stabilization device. Background technique [0002] The output power of an all-solid-state laser will fluctuate periodically or randomly over time, which limits its application range. At present, the main technologies to improve the stability of the output power of all-solid-state lasers include high-stability power supplies, improving the mechanical stability of the laser, and external-cavity stable power systems. [0003] Improving the stability of the all-solid-state laser excitation power supply and improving the mechanical stability are both guarantees for stabilizing the laser output power, but these two methods have certain limitations. The laser output power will still change with the change of the external environment, and produce Inevitable random fluctuations. [0004] Another technique to improve the stabilit...

AI Technical Summary

Problems solved by technology

[0006] In view of this, in order to overcome the problem of the output power fluctuation of the all-solid-state laser system and improve its output power stability, the present invention provides a magnetically controlled all-solid-state laser output power stabilization device

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