Gas stimulated Raman amplifier with Raman seed light
A stimulated Raman and amplifier technology, applied in the direction of phonon exciters, lasers, laser components, etc., can solve the problem of high gas stimulated Raman scattering threshold and achieve high quantum conversion efficiency
Inactive Publication Date: 2014-06-11
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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In addition, due to the small particle concentration of the gas medium, this means that the traditional gas stimulated Raman scattering threshold will be relatively high
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[0028] see attached figure 1 shown. It can be seen from the figure that the gas-stimulated Raman amplifier with Raman seed light of the present invention includes: a pump laser 1, a set of splitting system 2 that divides the pump light into two beams, and the pump light is highly reflective and pulls The first dichroic mirror 3 with high transmittance of Mann light, the first focusing lens 4 of the first beam of pump light, the first Raman cell 6 and the 10 mm thick sealing flanges at both ends are respectively provided with 30 mm in diameter The first quartz window plate 5, the second quartz window plate 7, the air pressure gauge 21 and the inflation valve 22 installed on the first Raman cell 6, the second focusing lens 8 of the backward Raman seed light for the second The first high-reflection mirror 9, the second high-reflection mirror 12, the third 1 / 2 wave plate 10, the third focusing lens 11 of the second pumping light, and the Raman seed light and the first The second...
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The invention provides a gas stimulated Raman amplifier with Raman seed light. The gas stimulated Raman amplifier comprises a pump laser (1), a beam splitting system (2), a first Raman pool (6), a second Raman pool (16) and a set of beam splitting prisms (20). The pump light source (1) is split into two beams of pump light through the beam splitting system (2), wherein the first beam of pump light is guided into the first Raman pool (6) through a first two-phase dichroic mirror (3), and then backward Raman seed light is generated, the second beam of pump light is delayed through a light path, the second beam of pump light and the backward Raman seed light simultaneously reach a second two-phase dichroic mirror (13) to be combined into beams, and are guided into the second Raman pool (16) together for stimulated Raman amplification, and eventually amplified Raman light is obtained through the set of beam splitting prisms (20). Experimental results show that compared with a traditional single-stage Raman pool, the gas stimulated Raman amplifier has the advantages that stimulated amplified Raman light with higher conversion efficiency can be acquired, and the gas stimulated Raman amplifier can be widely applied to the fields of military, medical treatment, environment monitoring and the like.
Description
technical field [0001] The invention relates to a stimulated Raman amplifier, in particular to a gas stimulated Raman amplifier with Raman seed light. Background technique [0002] With the continuous development of lasers in many application fields such as transportation, measurement, medical treatment, national defense and industry and agriculture in recent years, the development of special laser wavelengths has attracted more and more attention. These special laser wavelengths can be generated by new laser working substances or by nonlinear optical frequency conversion of optical materials (gases, crystals). In the field of nonlinear optics, stimulated Raman scattering can be used to convert the laser emission wavelength to a specific frequency (depending on the Raman vibration mode frequency of the Raman medium) to achieve a specific laser wavelength output. Therefore, stimulated Raman scattering technology is an important technical means to realize laser wavelength con...
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Login to View More IPC IPC(8): H01S3/30H01S3/094
Inventor 周灿华郭敬为孟庆琨刘金波周冬建金玉奇
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI