The following summarizes the main research activities conducted in our laboratory at Ben-Gurion University:
Stimulated Raman Scattering in Gas-Filled Hollow-Core Fibers. We have developed a dedicated vacuum and pressure system that enables evacuation of air from hollow-core fibers and controlled filling with selected gases.
We work with various fiber types, including photonic crystal fibers, anti-resonant fibers, and nested anti-resonant fibers.
We investigate novel methods for the permanent inscription of fiber Bragg gratings (FBGs), including phase-shifted FBGs, chirped FBGs, and FBG arrays.
Using 800 nm femtosecond pulses from a Ti:Sapphire laser, we induce permanent refractive index modifications in the fiber core.
Laser material processing plays a central role in modern industry and technology. Our research spans a broad range of material processing applications.
We perform metal cutting using nanosecond pulsed and high-power continuous-wave (CW) lasers. We also investigate nanosecond laser interactions with biological tissues.
Over the past two decades, fiber lasers have experienced significant growth due to their inherent advantages over conventional free-space lasers.
These advantages include intrinsic cavity alignment stability (since mirrors are integrated within the fiber) and superior thermal management, as heat can be efficiently dissipated along the extended fiber length.
In contrast, bulk solid-state lasers using crystals or rods often suffer from thermal limitations that restrict output power.
