The coils of fiber wrapped around the aluminum drums inside the chassis turned out to be the amplifier; fed by a semiconductor seed laser, the light pulse travels through the ytterbium-doped fiber ...

Thulium-doped fiber (TDF) chirped pulse amplifier (CPA) has been recognized as a promising candidate for generating high average power ultrafast lasers at 2.0 μm, thanks to the merits of fiber ...

Experimental results showed that when the laser was pumped by a 1,940 nm Tm-doped fiber laser with a 1.8 mm diameter pump spot, it reached a peak output power of 26.5 W with optical efficiency ...

Researchers developed doped photochromic glass for stable, rewritable data storage, utilizing tunable luminescence for advanced 3D optical memory solutions.

It relies on the interaction between light and atoms in the fiber. Unlike erbium-doped fiber amplifiers (EDFAs), which boost wavelengths in the 1530-1610 nm range, a Raman amplifier can increase ...