Laser capable of automatically adjusting wavelength

Abstract

The invention provides a laser capable of automatically adjusting wavelength, which relates to a wavelength regulation technique for pulse lasers. The laser is characterized by comprising an automatic wavelength conversion system; the automatic wavelength conversion system is positioned on the inner side of a laser output window and behind laser light output boxes; the automatic wavelength conversion system consists of a gearwheel and a pinion which are meshed with each other; the ratio of the number of the teeth of the gearwheel to the pinion is 10 to 3; the maximum distance of the laser light output boxes is seven tenths times the sum of the diameters of the gearwheel and the pinion; five through holes symmetrical with the caliber of the light output boxes are uniformly distributed on seven-tenths of the diameter of the gearwheel in the circumferential direction; three through holes symmetrical with the caliber of the light output boxes are uniformly distributed on seven-tenths of the diameter of the pinion in the circumferential direction; the position of the leftmost through hole of the gearwheel is matched with a left light output box; and the position of a through hole on the right side of the pinion is matched with the rightmost light output box. The laser can realize the automatic conversion of laser wavelength.

Description

technical field [0001] The invention relates to a wavelength control technology of a pulse laser, in particular to an automatic wavelength conversion system of a pulse laser with multi-window, single-wavelength and single-window output. Background technique [0002] With the rapid development of laser technology, from scientific research to teaching, from military to industry, from industry to civilian and many other fields. In engineering applications, the requirements for reliability, engineering, stability, versatility, and convenient operation of lasers are also increasing. [0003] The current single-wavelength laser output can no longer meet the application requirements in many cases. [0004] At present, the solution to achieve wavelength adjustment is mainly crystal frequency doubling, and the switching method is two kinds of lens splitting. [0005] Such as invention patent number: 01119589.4, patent name: a multi-wavelength laser with acousto-optic Q-switching; t...

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Problems solved by technology

[0005] Such as invention patent number: 01119589.4, patent name: an acousto-optic Q-switched multi-wavelength laser; this method can adjust the output wavelength of the laser through the acousto-optic modulator, but it can only output 1.0um and 1.3um wavelengths. Other wavelengths limit its application

[0006] Invention patent number: 01106708.X Patent name: All-solid-state multi-wavelength laser; the invention can output multi-wavelength single-window on a single laser, and its wavelength conversion needs artificially changing crystal frequency multiplication, which cannot be satisfied in the occasions that need to quickly switch between different wavelengths Require

Moreover, artificially changing the frequency doubling of the crystal will bring a lot of trouble to the user, and frequent disassembly of the laser body will reduce its service life.

[0007] Invention patent number: 03125088.2, patent name: multi-wavelength continuous laser; the invention can realize the simultaneous output of three primary colors of red, green and blue wavelength lasers in a single window, but it cannot meet the application where single wavelength output is required

The present invention designs a crystal frequency doubling conversion device, through which wavelength conversion can be realized, but the output window of the laser needs to be manually adjusted, and its application is limited in the occasions that need to switch wavelengths quickly

[0009] The laser wavelength conversion system disclosed above, such as Patent No.: 01106708.X, can realize multi-wavelength output but needs artificially changing crystal frequency doubling, while patent No.: 200720033578.2 realizes automatic conversion of crystal frequency doubling, but the output window still needs manual conversion , the existing disclosed laser wavelength conversion system has not fully realized the laser crystal frequency doubling and the automatic conversion of the laser output window, so its application is limited in certain occasions

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