Compensation of beam walk-off in hollow metal waveguides
Jong‐Souk YeoR. N. BicknellSagi MathaiP. E. KornilovitchHuei Pei KuoPaul RosenbergMengxi TanLiam G. King
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Beam splitter
Waveguide
Collimated light
Optical path
Collimated light
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The collimated light source is used to demarcate other optical components.Therefore,it is more important to confirm the orientation of the parallel light beam.Because manufacturing and installation factors cause initial position uncertainty of optical axis of collimation light,the oriental position of collimated light need adjustment.It presents four-freedom mechanisms to realize adjustment of the optical axes location of collimated light and analyze function and structure of the four-freedom adjusted mechanisms.The mathematical model of four-freedom adjusted mechanism which has been built is applied to realize the optical axes location adjustment of the collimated light,and use the model quantized the adjusted quantity during the Optical axes location of the collimated light.
Collimated light
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Light beam
Ray
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Divergence (linguistics)
Beam divergence
Aperture (computer memory)
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Divergence (linguistics)
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Beam splitter
Optical path
Wavefront sensor
Splitter
Optical path length
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We propose a kind of freeform shaping optics for compound collimated beam shaping. This design can achieve prescribed uniform rectangular illuminations without concern for the initial pattern, position or intensity of collimated beam.
Collimated light
Beam expander
Position (finance)
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The optical test and optical instruments calibrating often use the collimated beam, so the research of light collimation is of great significance. Lots of new techniques have been proposed. Based on Talbot effect, a method for testing light collimation is proposed that the collimation of laser beam checked by measuring the obliquity of Moire fringe of twin-grating. By improving the previous testing method and discussing impact on the precision of the method, the precision was estimated theoretically. The result shows that the technique is very simple and has a high precision.
Collimated light
Talbot effect
Moiré pattern
Laser light
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Beam splitter
Splitter
Optical path
Optical path length
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Beam splitter
Waveguide
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Beam propagation method
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