Laser light diffracting in a cone
A direct image of the bare fiber tip, output port of the ytterbium femtosecond fiber laser of my construction. The laser light diffracting in a cone from a fiber tip is at 1,030 nm wavelength, and it is directly shot by the DSLR camera. —Radosław Chrapkiewicz, Optics Division, Faculty of Physics, University of Warsaw, Poland
