Haituo green laser pointer firm promotes the spirit of hard struggle

Small beam divergence angle can be close to low-cost model; multi-stage model is certainly a large beam divergence angle. Therefore, the conversion of a small beam divergence angle is the processing of the meaning of the small focal spot, but also easy to achieve focus. Power density is high. This further illustrates the size of beam divergence angle is related to processing efficiency and processing quality of the important parameters. B. Beam diameter, waist, beam divergence angle second moment calculation method fails to consider the window of thermal deformation of the lens elements, beam divergence angle is usually referred to the waist diameter mostly in the resonant cavity, called the negative beam divergence angle of the waist diameter location mostly in the cavity. Haituo green laser pointer firm keeps in pace with the development of overseas information technology and even has some creativity.C. Beam diameter, waist, beam divergence angle is the direct measurement of the beam diameter by 0.01mm can distinguish the "standard beam diameter measuring instrument" with a long focal length with a beam focusing device for the artificial waist beam divergence angle to achieve a direct measurement. 2.3.4 percent. Measurement of laser beam polarization is transverse electromagnetic waves, which spread from the direction perpendicular to each other and with the vertical oscillation of electric and magnetic oscillations in the electromagnetic field in the group, determined the orientation of the electric field vector E of the laser beam polarization.What mentioned above is the basis for the survival of Haituo green laser pointer company. If the electric vector vibrating in the same plane, called plane polarized light or linearly polarized light is called. Laser is linearly polarized light, and natural light can be seen as a non-polarized light. Two-beam polarization plane of linearly polarized light perpendicular superposition, when the phase difference is fixed, then become elliptically polarized light. Processing, mostly elliptically polarized laser beam. To have a certain thickness of iron with a laser beam cutting a circle, you will see a positive for the kerf circular, oval back. In order to avoid polarization of the laser beam impact on the process, it is necessary to bring the two beams of equal intensity, so that phase difference is by π / 2 or 3 π / 2, so get circularly polarized light. Circularly polarized laser beam through any fixed point, the instantaneous electric field vector of the same orientation effect, non-polarized light with the same effect. Haituo green laser pointer firm tries to set up challenging and competitive object.This is required for processing the beam. The polarization state of laser processing of materials has a significant impact on efficiency and quality. Material than the absorption of the laser beam not only determine the optical properties of the material itself, but also with the laser beam incidence angle and polarization state are directly related. Encountered in measuring the polarization of laser processing, basically based on two aspects: one is the measurement of laser beam polarization state; a circular polarizer is circular polarization performance testing. Laser beam polarization state measuring polarizer and detector. 2.3.5 The beam quality and laser beam quality factor M 2 of the concept of the laser beam output characteristics of the laser beam quality is an important indicator in the parameter.Haituo green laser pointer company promotes the spirit of struggle. In 1988, A. E. Siegman use dimensionless quantity - M 2 beam quality factor of a more scientific and reasonable description of the laser beam quality, and the International Standards Organization (ISO) adopted.
Quality factor M 2 is: M2 = actual width of the beam waist and far-field divergence angle of the base product of the width of Gaussian beam waist and far-field divergence angle of the product for the fundamental mode (TEM 00) Gaussian beam, with M 2 = 1, beam quality, the actual beam M 2 are greater than 1, characterized by a multiple of the actual beam diffraction limit.