Homogenization system and method for pulsed laser light source
A technology of pulsed laser and laser light source, which is applied in optics, optical components, instruments, etc., can solve the problems that affect the homogenization effect of the microlens array, and achieve the effect of meeting the homogenization requirements and uniform spot
Active Publication Date: 2022-03-15
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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Problems solved by technology
However, due to the periodicity of the Fourier lens, there will still be a periodic spot array, which affects the homogenization effect of the final microlens array
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[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0027] Such as figure 1 As shown, the homogenization system of the pulsed laser light source of the present embodiment includes a laser light source, a dye pool 1 and a light concentrating system 2 arranged in sequence, and rhodamine B liquid phosphor is added in the dye pool 1, and a rhodamine B liquid fluorescent substance is added in the light concentrating system 2. There are two cemented lenses.
[0028] The laser irradiates the rhodamine B liquid phosphor in the dye pool 1 to excite the dye to generate fluorescence, which ...
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Abstract
The invention belongs to the technical field of pulsed laser imaging, and in particular relates to a homogenization system and method for a pulsed laser light source. The technical solution is: a homogenization system for pulsed laser light sources, including a laser light source, a dye pool and a light concentrating system arranged in sequence. Rhodamine B liquid phosphor is added to the dye pool, and two cemented lenses are installed in the light concentrating system. . A method for homogenizing a pulsed laser light source, comprising the following steps: S1: laser light irradiates a dye pool equipped with rhodamine B liquid fluorescent substance to excite and generate fluorescence; S2: the fluorescence is focused and shaped through a cemented lens of a light-condensing system, and the output is small Aperture diaphragm. The invention provides a homogenization system and method for a pulsed laser light source.
Description
technical field [0001] The invention belongs to the technical field of pulsed laser imaging, and in particular relates to a homogenization system and method for a pulsed laser light source. Background technique [0002] Flow display is an important fluid mechanics experimental technique for studying complex flow and revealing boundary layer separation and its vortex structure, and optical display is an important means of flow display. At present, the main development direction in the field of optical display is to develop towards high time resolution and high spatial resolution. With the development of laser technology, the addition of high-energy narrow pulse width and timing control has brought many new changes to fluid display. Pulsed laser light source has become an increasingly important role due to its advantages of high energy and narrow pulse width. The principle is to capture the transient image of the flow field in slices through a pulsed light source, eliminating...
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IPC IPC(8): G02B27/09
CPCG02B27/0938
Inventor 黄振新陈植何威李腾骥彭昊冯黎明何彬华李国帅李永红夏洪亚胥继斌张鑫腾达
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT