Three-way holmium laser

Abstract

The present invention discloses a three-way holmium laser. The three-way holmium laser comprises a case, the case is internally provided with a fixed plate, a first holmium laser resonant cavity, a second holmium laser resonant cavity and a third holmium laser resonant cavity penetrate the fixed plate, one sides of the first holmium laser resonant cavity, the second holmium laser resonant cavity and the third holmium laser resonant cavity are respectively provided with output mirrors, a rotating plate is arranged at the outer walls of the output mirrors, and the output mirrors penetrate the rotating plate and are extended to one side of the rotating plate. The three-way holmium laser is provided with the first holmium laser resonant cavity, the second holmium laser resonant cavity and thethird holmium laser resonant cavity to facilitate generating lasers after powering on to achieve gathering of the lasers, is provided with a collecting lens to facilitate gathering parallel lasers toachieve a laser gathering effect, and is provided with a slide rod to facilitate sliding the slide rod at the inner wall of the case to control a distance between the collecting lens and the rotatingplate, and therefore an effect of controlling the size of the lasers can be achieved.

Description

technical field [0001] The invention relates to the field of resonant cavity structures of laser devices, in particular to a three-way holmium laser. Background technique [0002] Holmium laser is a pulsed laser made of Cr, Tm, Ho:YAG crystal, its output wavelength is 2.1m in the absorption peak of water, therefore, this laser has a shallow penetration depth to human tissue and has high surgical accuracy. And it is safe for human eyes, and it can be transmitted by optical fiber, so it is a very good light source for surgery in medicine. Therefore, holmium laser has been widely used in the fields of urology, dermatology, obstetrics and gynecology, gastroenterology, general surgery and ENT. [0003] The holmium laser has a high luminous threshold, and the thermal conductivity of the holmium laser crystal is low, so the electro-optical conversion efficiency and output power of the holmium laser are low. In order to obtain a holmium laser treatment machine with high output pow...

AI Technical Summary

Problems solved by technology

[0004] In the existing dual-channel holmium laser, the sealed resonator used to install the laser is often fixed, and each individual resonator is not adjustable, and the laser is a precision instrument, which will be adjusted during transportation and use. , if the laser is cheap, it will not be able to continue to be used, the laser needs to be recalibrated, and sometimes it is even necessary to open the sealed resonator to calibrate a separate resonator, which is very troublesome, and If the resonant cavity is set to be adjustable, the optical adjustment mount used together with the resonant cavity cannot use the traditional structure and needs to be redesigned

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