May 22, 2026
The authors demonstrate a high-power delivery through a highly multimode optical fiber by shaping the incident wavefront of a laser beam to strongly suppress the stimulated Brillouin
Apr 05, 2026
Raman nonlinearity induces beam cleanup in long graded-index fibres within a laser cavity, even for CW Stokes beams pumped by highly-multimode laser diodes (LDs).
Feb 25, 2026
The Raman gain coefficient can depend both on the optical frequency difference of the involved waves and on the transverse coordinates. Also, in a beam propagation model one could easily include
Dec 18, 2025
Beam cleanup via stimulated Raman scattering in multimode fibers is modeled by numerically considering the competition between the Stokes modes of graded-index and step-index
Nov 11, 2025
As a result, it can be rather challenging at times to sift through the wide-ranging laser options all being marketed for Raman spectroscopy. In this
May 24, 2026
Advanced wavefront-shaping methods can be used to transform a simple multimode fiber into an ultra-thin laser scanning microscope. Here, we extend this technique to label-free non-linear
Jan 13, 2026
Here we demonstrate Raman spectroscopic imaging via complex correction in single multimode fibre without using any additional optics and filters
Sep 12, 2025
Raman scattering is a nonlinear scattering process involving optical phonons. It can occur spontaneously, but also in stimulated form.
Nov 10, 2025
Brillouin and Raman scattering are pivotal nonlinear effects in fiber optics, enabling distributed sensing and influencing signal propagation. Brillouin
Dec 18, 2025
Nowadays, in fiber optic communications the growing demand in terms of transmission capacity has been fulfilling the entire spectral band of the
Apr 05, 2026
Here, we experimentally demonstrate an all-fiber-based cascaded system comprising a standard multimode graded-index (GRIN) fiber and a few-mode non-zero dispersion-shifted (NZDS)
Aug 21, 2025
Up to over kW power Raman fiber laser and amplifier sources have recently been demonstrated with multimode graded index fiber (1002 W) as well as with multi-clad clad-pumped
Apr 12, 2026
Stimulated Raman scattering in a multimode fiber, simulated with numerical beam propagation. Mode-dependent Raman gain can be investigated.
Sep 07, 2025
In this work, we develop a unified theoretical framework for multimode interactions mediated by Kerr-induced parametric and Raman scattering processes in optical fibers.
Feb 12, 2026
We experimentally demonstrate for the first time the amplification of optical signals in a mode-division multiplexed multimode fiber link via inter-modal stimulated Raman scattering.
Sep 08, 2025
Fiber Raman amplifiers, on the other hand, utilize stimulated Raman scattering to provide optical gain in the optical fiber, and Raman amplifier can be made as either discrete or distributed, so that noise
Jul 07, 2026
The spectral and spatial features of the coherent Raman emission (stimulated scattering and/or four-wave mixing) emission from the multimode GeO 2 -doped and P 2 O 5 -doped glass
Sep 13, 2025
The phenomenon of periodic self-imaging of optical beams graded-index (GRIN) fibers was studied during the 1970s and was exploited to commercialize the GRIN lens. It has been found in
Sep 18, 2025
A novel approach to the development of Distributed Temperature-Sensing (DTS) systems based on Raman Scattering in Multimode optical fibers
Aug 25, 2025
Light propagation in multimode fibers is known to experience various nonlinear effects, which are being actively studied. One of the interesting effects
Feb 28, 2026
Applications in Fiber Optic Sensing Brillouin and Raman scattering have become foundational technologies in distributed fiber optic sensing,
Nov 21, 2025
A fiber probe has been developed that enables simultaneous acquisition of mid-infrared (MIR) and Raman spectra in the region of 3100–2600 cm−1.
Jun 17, 2026
In the present manuscript, we demonstrate the generation of narrow spectral modes, emerging in the radiation of random Raman fiber lasers, utilizing a graded-index multimode fiber
Nov 02, 2025
Stimulated Raman scattering (SRS), which is of interest of this paper, can be used to shift the laser emission wavelength over a fixed frequency shift, making access to additional spectral output laser
May 02, 2026
Raman fiber lasers (RFL) based on multimode (MM) fibers are promising in terms of potential increase in power while maintaining high beam quality. One fundamental challenge on this
Aug 18, 2025
We present a new design of a random Raman fiber laser based on a graded-index multimode fiber as the media composing the cavity that allows the generation of narrow spectral lines.
Mar 26, 2026
Here, we show how a wavefront shaping technique can be used to measure Raman images through a single, hair-thin multimode fiber. The wavefront shaping technique transforms the tip of the fiber to a
Oct 22, 2025
Raman fiber refers to a type of optical fiber used in Raman lasers, where stimulated Raman scattering (SRS) occurs to generate Stokes light within a cavity formed by partially reflecting mirrors, enabling
Dec 09, 2025
Here, we show how a wavefront shaping technique can be used to measure Raman images through a single, hair thin multimode fiber. The wavefront shaping technique transforms the
We Look Forward to Working with You