We propose and experimentally demonstrate an effective method to reduce near-field
speckle noise at the output of a 50 μm graded index multimode fiber using a short cylindrical …

We propose and experimentally demonstrate an effective method to reduce far-field speckle
noise in multimode fiber with a short cylindrical piezoelectric transducer (PZT) vibrating in …

We experimentally investigate a technique to reduce speckle contrast in multimode fibers by
using a piezoelectric vibrator. The speckle patterns in multimode fiber are attributed to the …

We report efficient acousto-optic control of speckle contrast at the output of multimode fibers
(MMFs) using a cylindrical piezoelectric transducer (PZT) vibrating in the radial direction …

The speckle phenomenon produced by coherent waves interfering with each other is
undesirable in laser imaging systems. For each of the laser speckle reduction methods in …

A specklegram in a multimode fiber (MMF) has successfully been used as a sensor for
detecting external disturbance. Our experiments showed that the sensitivity in the sensor …

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). The …

In this paper, we present experimental results on speckle noise suppression using a
completely passive method. The passivity of the method is achieved owing to the absence of …

This paper proposes the characterization of speckle patterns of multimode fibers in view of
sensing applications and particularly for detection of vibration or seismic activity. Plastic …

We report significant speckle reduction in a laser illumination system using a vibrating
multimode optical fiber bundle. The optical fiber bundle was illuminated by two independent …