1210nm optical parameter oscillator

An optical parametric oscillator and parametric oscillation technology, applied in the field of optoelectronics, can solve the problems of high cost and low laser power

Inactive Publication Date: 2008-08-06
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Problems solved by technology

And the fat burning effect of lasers with other wavelengths is not as good as that of 1210nm, so lasers with this wavelength will have a great demand
At present, there i

Method used

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  • 1210nm optical parameter oscillator

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Embodiment Construction

[0012] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0013] In the accompanying drawings, 1 is the laser pump light with an output wavelength of 532nm; 2 is the input mirror of the optical parametric oscillator, which is coated with a dielectric film that is highly transparent to 532nm wavelength and highly reflective to signal light and idler light; 3 is the aperture diaphragm , the clear aperture is 3 mm, it is placed behind the input mirror, it can not only select the mode of pump light, but also select the mode of parametric light; 4 is KTP nonlinear optical crystal, adopting non-critical phase matching θ=90° , φ=81.6°. The pump light pumps the nonlinear crystal KTP after passing through the pinhole mode selection, so that the signal light can start to oscillate in the cavity, and the non-critical phase matching produces e 2 Parametric light; 5 is the K9 glass output mirror of the optical parametric oscil...

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Abstract

The invention provides a 1210 nm optical parameter oscillator, relating to the photoelectron technical field. The oscillator consists of an input mirror, a small aperture, two nonlinear optical crystals and an output mirror set. The oscillator generates the laser with the length of 1210 nanometers which can be up to the laser power necessary to burning fat after amplified. The optical parameter oscillator is an all solid state laser with high efficiency. Compared with a free electron laser, the optical parameter oscillator can greatly lower the medical cost and has the advantages of low cost, compact system, etc. Therefore, the optical parameter oscillator has good market propect.

Description

technical field [0001] The invention relates to the field of optoelectronic technology. Background technique [0002] With the improvement of people's living standards, the number of obese people continues to increase. In addition to middle-aged and elderly people, there are also young people. In China, the number of people who are obese has also doubled since the early 1990s. Obesity has not only become the primary health problem for individuals, but also a major problem that mankind will face. This year, researchers at Jefferson Lab did research on the absorption peaks in the absorption spectrum of fat at 800-2600nm wavelengths and found that the fat 1cm deep below the epidermis absorbs laser light at 1210nm wavelength more than twice that of the epidermis, and the epidermis has no damage. However, the fat burning effect of lasers with other wavelengths is not as good as that of 1210nm, so lasers with this wavelength will be in great demand. At present, there is no rep...

Claims

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Application Information

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IPC IPC(8): H01S3/094H01S3/05H01S3/108H01S3/16A61N5/067
Inventor 许灿华李锦辉林季鹏郑晖黄见洪史斐林文雄
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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