Laser beam coupling output device and coupling output method

Abstract

The invention relates to the technical field of laser beam coupling, in particular to a laser beam coupling output device and a multi-wavelength multi-beam laser coupling output method. The laser beamcoupling output device comprises a laser emitting device, a scleral lens, an optical shutter and an optical fiber coupler module, wherein the laser emitting device is used for emitting a plurality ofbeams of laser with different wavelengths and converging the plurality of beams of laser into one beam, the optical shutter is arranged between the scleral lens and the optical fiber coupler module,and the optical fiber coupler module is used for performing wavelength coupling on a light beam from the optical shutter to form a light beam containing a plurality of wavelengths. The laser beam coupling output device can be used for coupling a plurality of beams of laser with different wavelengths to form a laser beam containing the laser beams with a plurality of wavelengths, so that the beam waist diameter of an output light spot is reduced, and the coaxial output of the laser beams with a plurality of different wavelengths in a single optical fiber is achieved.

Description

technical field [0001] The invention relates to the technical field of laser beam coupling, in particular to a laser beam coupling output device and a coupling output method. Background technique [0002] Laser is a coherent light beam with strong directionality, good monochromatic performance and high concentration. It can be focused into a very small spot by using a lens. The energy density on the spot is very high, and it can It works within a millisecond, and the diameter of the laser spot can reach tens of microns after being focused, so the lesion can be precisely selected during treatment. Laser surgery has the advantages of less intraoperative bleeding and less bacterial infection. Laser technology and its role in modern medicine are becoming more and more important, and it can treat more than 100 diseases in internal medicine, outer shell, ophthalmology, dermatology, tumors and otolaryngology. [0003] At present, with the continuous expansion and deepening of cli...

AI Technical Summary

Problems solved by technology

However, in practical applications, there are mainly two types of applications for beams of multiple wavelengths: one is to use independent outputs of various wavelengths and manually replace the output opening. This method cannot meet the requirements of combined output, and single-wavelength It is also very cumbersome to manually replace the output port; another way is to combine multiple small-core diameter fibers into a large-core-diameter optical fiber to achieve beam combination, making the output spot larger

However, the laser spots of different wavelengths cannot be coaxial, which cannot meet the requirements of high-precision surgery

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