Full-solid state five-wavelength simultaneously outputting laser device and 5-wavelength laser generation method

Abstract

The invention discloses a laser facility of all-solid-state five-wavelength lasers simultaneous output and a laser production method. The five-wavelength lasers, that is, infrared of 1.3 mum wavelength, infrared of 1.0 mum wavelength, green light of 0.5 mum wavelength, yellow light of 0.5 mum wavelength and red light of 0.6 mum wavelength, are simultaneously output using a Nd<3+>-doped laser crystal as working substance and a composite resonator of + shape by combining nonlinear optics frequency translation technology with acousto-optically Q-switched technology as well as controlling the polarization direction of fundamental frequency lasers with different wavelengths by a polarization beam splitter. The fundamental frequency lasers with different wavelengths and polarization directions respectively form oscillation in each relatively independent resonant cavity and each beam of light can be adjusted independently. The laser facility has advantages of multiple wavelengths, high efficiency, compact structure, low running cost, convenient and flexible adjustment and safe work, and is widely used in the field of laser medicine, laser color display, laser entertainment, astronomy, national defense and scientific research.

Description

technical field [0001] The invention relates to a laser, in particular to an all-solid-state pumping power of 1.3-micron infrared light, 1.0-micron infrared light, 0.5-micron green light, 0.5-micron yellow light and 0.6-micron red light A laser device with simultaneous output of five wavelengths and a five-wavelength laser generating method. Background technique [0002] Since the birth of the world's first ruby ​​laser in 1960, various lasers and laser technologies have developed extremely rapidly. Among them, the development of multi-wavelength lasers has attracted much attention. Because it overcomes the defect of traditional lasers outputting a single wavelength, a certain wavelength laser can be artificially selected in different applications according to actual needs, and multi-wavelength lasers can also be combined for application, such as , in the field of medicine, single-wavelength high-power 532nm green laser can be used for the treatment of tissue hyperplasia, u...

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Problems solved by technology

However, the production process of this type of three-color laser is more complicated and the cost is higher.

In addition, there are also a few reports on four-wavelength lasers. Nanjing University uses the same crystal to emit fundamental frequency light in the range of 1.3 microns and 1.0 microns through a non-periodic optical superlattice to achieve four wavelengths of red, yellow, blue and green. The laser is output at the same time, but this cavity type has high requirements on the coating of the cavity mirror, and the output laser power is low, and the price of the optical superlattice is relatively expensive, which is not conducive to the industrialization of multi-wavelength lasers

The above-mentioned various multi-wavelength lasers have the defects of complicated operation, high cost, fewer wavelengths, and lower power

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