German Sachsen Frigate to Test a New Naval Laser Weapon

Defense Update  November 26, 2020 The laser source demonstrator can be employed in various projects to study military applications of high-power laser. The first project of the new laser will be a trial phase onboard the F219 Sachsen Class – the lead ship of this class. It consists of twelve nearly identical 2kW fiber laser modules with close to diffraction-limited beam quality. A beam combiner – a subassembly that turns multiple beams into a single beam through dielectric grid technology – couples the twelve fiber-laser beams to form a single laser beam with excellent beam quality. Spectral coupling technology offers […]

Physicists fight laser chaos with quantum chaos to improve laser performance

Phys.org  August 18, 2018 The instabilities in the laser are caused by optical filaments, light structures that move randomly and change with time, causing chaos. An international team of researchers (USA – Yale University, UK, Singapore) designed a D-shaped cavity for the laser to induce quantum chaos in the light bouncing around. By creating quantum (wave) chaos in the cavity the laser itself remained steady. The quantum chaos acts on a smaller scale than the wavelength of the light, creating the optical ‘hills’ that help to dispel the optical ‘tornadoes’. They gained insight into the processes and cavity shapes likely […]