When a multimode fiber transmits a laser beam, the speckle will form in its output field. A dynamic fiber scrambler could be used to suppress the
High-quality low-speckle projection image in a laser projector is demonstrated. We propose a flexible and lightweight laser speckle noise suppression module based on the combination
We examine how these algorithms perform when analyzing speckle patterns from a polymer optical fiber exposed to variations in both refractive index and pressure.
Abstract and Figures We report significant speckle reduction in a laser illumination system using a vibrating multimode optical fiber bundle.
We present a technique that utilizes cascaded resonant cylindrical piezoelectric ceramics and multimode optical fibers wound around them to
Speckle-free imaging using a multimode fiber has been widely used for imaging systems. Generally, previous work has assumed that all the
Here we propose and demonstrate an efficient method of suppressing SBS in standard multimode fibers while maintaining narrow linewidth and high output-beam quality, via wavefront
In this paper, a de-speckle system consisting of a multimode fiber (MMF), a dielectric elastomer actuator (DEA) and a lightpipe is proposed and demonstrated, which can reduce speckle
Abstract We propose a flexible and lightweight laser speckle noise suppression module based on the combination of a multimode fiber (MMF) and a macro fiber composite (MFC).
When the multimode fiber is placed in the source path of a Michelson interferometer, each spatial mode produces an intensity image of an independent speckle field. To illustrate speckle averaging using
We characterized the temporal fluctuations of dynamic speckles in a dedicated optical fiber-based setup, in transmission, where we placed the thermo-optic colloidal suspension between
Speckle noise is a major limitation of laser projection and imaging systems, and be suppressed using multimode fiber (MMF); however, speckle suppression is not sufficient when only
Laser Speckle Suppression by the Phase Modulation of Input Beam in a Multimode Fiber Cong Yang*1,2,3, Jian Han1,2, Yuanjie Wu1,2,3, Huiqi Ye1,2, Dong Xiao1,2
Static laser speckle suppression using multimode fibers has practical limitations as the technique requires an extremely long fiber to achieve an acceptable speckle contrast.
The multimode fiber (MMF) can be adopted to the fiber-coupling laser transmitting optics system of the array-imaging LiDAR for far-range detection due to the relatively high demand for laser
Ideal for DNA sequencing, multimode fiber sensing, and testing of multimode fiber devices, the MMSP is a plug-and-play benchtop unit with a default-enabled TTL input and a 24 V power supply included.
The fiber-based spectrometer consists of a multimode fiber and a monochrome CCD camera that images the speckle pattern at the end of the fiber. The speckle pattern, created by interference
We present a technique that utilizes cascaded resonant cylindrical piezoelectric ceramics and multimode optical fibers wound around them to effectively mitigate laser speckle. By precisely
We analyzed the speckle suppression efficiency of a multimode fiber in a practical laser projector, and developed a theoretical model. Theoretical ana
Abstract Multimode fibers (MMF) have been extensively investigated for transmitting images. The transmitting images are distorted into speckle patterns by MMFs, which can be
The invention relates to a multi-mode optical fiber laser speckle suppression device, comprising an optical fiber clamping part, a vibration generating part and a connecting rod; the optical fiber
In the field of laser display, light transmitted through multimode fibers is projected onto a screen, and multimode fiber speckles cause dynamic spots to appear on the screen, so that the...
Fiber specklegram sensors (FSS) are a kind of sensor based on the intermodal interference of multimode optical fibers (MMFs) . When coherent light is incident into a multimode
Speckle noise is a major limitation of laser projection and imaging systems, and be suppressed using multimode fiber (MMF); however, speckle
This work introduces an in-situ nano-displacement measurement system via a multimode fiber probe with superoscillatory speckles and deep learning.
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