Thulium laser based on wavelength locked semiconductor laser module

Abstract

The invention relates to a thulium laser based on a wavelength locked semiconductor laser module, and belongs to the technical field of laser. The thulium laser comprises a wavelength locked narrow linewidth semiconductor laser module, a pump light collimating and focusing module and a laser resonant cavity module. Semiconductor pump light is outputted to the pump light collimating and focusing module through the wavelength locked narrow linewidth semiconductor laser module and then outputted through the laser resonant cavity module. With application of the technical scheme, efficient output of the high-power Tm laser under the room temperature can be realized and the optical-to-optical conversion efficiency can be increased to 45%.

Description

technical field [0001] The invention belongs to the field of laser technology, and in particular relates to a thulium laser based on a wavelength-locked semiconductor laser module, which is used to improve the optical-to-optical conversion efficiency of a high-power LD pumped Tm laser. Background technique [0002] The laser wavelength of the rare earth thulium Tm ion-doped solid-state laser covers the characteristic absorption peaks of water molecules and greenhouse gas molecules, and has a wide range of application values ​​and prospects in the fields of remote sensing, environmental monitoring, and biomedicine. At the same time, the laser is also a high-power pump source for excessive metal-doped lasers and optical parametric oscillators based on phosphorus-germanium-zinc crystals, used to achieve mid-infrared 3-5 micron laser output. At present, the working materials of Tm lasers are divided into three categories: optical fibers, crystals and ceramics. Among them, thuli...

AI Technical Summary

Problems solved by technology

Therefore, the light-to-light conversion efficiencies of current high-power Tm:YAG lasers at room temperature are all lower than 35%

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