Intermediate-infrared solid laser

Abstract

The invention relates to an intermediate-infrared solid laser, and the laser comprises a pump laser source, a polarizer, a parabolic surface focusing lens, a resonant cavity which consists of two opposite concave lenses, and a solid medium disposed in the resonant cavity, wherein the solid medium is a bonding crystal which is formed by the bonding of a thulium-doped yttrium aluminate crystal and achromium-doped zinc selenide crystal. A temperature control system circuit board comprises a temperature sensor, a temperature control circuit, and a TEC chip. The solid medium is disposed on the TECchip, and the temperature sensor collects a real-time temperature signal of the solid medium, and transmits the real-time temperature signal to the temperature control circuit. The temperature control circuit controls the work current of the TEC chip according to the real-time temperature signal of the solid medium, and achieves the temperature control of the solid medium. The laser is provided with the temperature control system circuit board, so the laser can achieve the precise control of the temperature of the solid medium, and guarantees the work reliability of the solid medium.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a mid-infrared solid-state laser. Background technique [0002] The mid-infrared laser is an important part of semiconductor laser pumping. The existing mid-infrared laser generally includes a pump laser source, a resonator and a solid medium arranged in the resonator. The laser generated by the pump laser is focused on the solid medium in the resonator. On the medium, since each component can only move axially along the optical axis and the adjustment range is limited, most of the current mid-infrared lasers have low power, and the current temperature control method is simply to install the solid medium on a cooling plate , The temperature control method is rough and the precision is not high, which cannot effectively ensure that the solid medium does not deform when the temperature changes, and that the solid medium can work normally. Contents of the invention [0003] The ob...

AI Technical Summary

Problems solved by technology

[0002] The mid-infrared laser is an important part of semiconductor laser pumping. The existing mid-infrared laser generally includes a pump laser source, a resonator and a solid medium arranged in the resonator. The laser generated by the pump laser is focused on the solid medium in the resonator. On the medium, since each component can only move axially along the optical axis and the adjustment range is limited, most of the current mid-infrared lasers have low power, and the current temperature control method is simply to install the solid medium on a cooling plate , the temperature control method is rough and the precision is not high, which cannot effectively ensure that the solid medium does not deform when the temperature changes, and that the solid medium can work normally

Images