Speckled output
Web(a.) Marked or variegated with small spots of a different color from that of the rest of the surface. Example Sentences: (1) The nuclear origin of the Ha antigen was confirmed by the speckled nuclear immunofluorescence staining pattern given by purified antibody to Ha obtained from a specific immune precipitate. Speckle imaging describes a range of high-resolution astronomical imaging techniques based on the analysis of large numbers of short exposures that freeze the variation of atmospheric turbulence. They can be divided into the shift-and-add ("image stacking") method and the speckle interferometry methods. These techniques can dramatically increase the resolution of ground-based tele…
Speckled output
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WebAug 29, 2016 · On the output side, pump light from the laser diode was injected in free space into the MM fiber by a dichroic beam splitter and imaging optics. Its power varied in the range of 0–50 W. Webmodes would lead to highly speckled or irregular intensity patterns at the MMF output. On the other hand, it is well-known that the power scaling of high-power fiber lasers based ... amplifier output, for powers about a certain threshold value [17]. A possible solution to mitigate TMI is provided by the use of tapered ytterbium-doped
WebSpeckle is the inherent condition that is a result of constructive and destructive interference of the backscattered signal. The images generated by laser, ultrasound, and synthetic aperture radar (SAR) systems are subject to speckle noise due to the interference of the returning electromagnetic waves scattered from multiple surfaces. WebMultimode fibers (MMF) are promising candidates to increase the data rate while reducing the space required for optical fiber networks. However, their use is hampered by mode mixing and other...
WebSpeckle is the inherent condition that is a result of constructive and destructive interference of the backscattered signal. The images generated by laser, ultrasound, and … Webpower grows larger, of the output near -field intensity patterns. As can be seen, for average powers above 0.4 mW (corresponding to a peak power of about 4 .4 W), the speckled output intensity pattern resulting from the coherent superposition of the multimode field self-cleans into a bell-shaped beam, with negligible multimode field background.
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