We’ve all heard the “Do not stare into laser with remaining eye” joke. It’s funny because it’s true, as pretty much any laser a hobbyist can easily come by can cause permanent damage to eyes unless ...

At high power, laser light inside a multimode optical fiber is supposed to misbehave. The beam usually breaks into a noisy, scattered pattern as the light ricochets through many paths at once.

Cladding light stripper (CLS) technology addresses a major challenge in scaling thulium fiber lasers beyond their long-standing 1 kW power limit. A new self-adapting CLS design distributes heat along ...

The inventors of an unconventional, ribbon-shaped optical fiber geometry say that it could be set to drive fiber-laser power output dramatically, while maintaining beam quality. Based at the Lawrence ...