---

Fiber laser

Optical fiber has become the transmission medium of choice for telecommunication networks operating at high data rates and over long distances. Optical fiber lasers have received increasing attention in recent years, particularly as the source for pumping optical fiber amplifiers. The radiation emitted by a laser beam source can be coupled into an optical fiber of suitable dimensions and optical properties wherein light can be transported with no significant loss over very long distances. An optical fiber, often doped with an active material such as a rare earth element, is pumped by coupling optical energy into it at a predetermined wavelength. Pumping energy coupled into the fiber is absorbed, causing a population inversion in the doped material that is followed by optical radiation at a characteristic wavelength of the doped fiber. By providing the fiber with reflective ends, a resonance condition develops within the fiber cavity. An output coupler allows the output of the developed laser energy. A typical fiber laser device includes a double clad silica fiber with a small diameter and small NA core doped with active species, centered within a much larger inner cladding, surrounded by a soft low index fluoropolymer. Pumping laser beams from laser diodes are coupled into the fiber inner cladding through the dichroic end mirror. In a fiber laser the laser-active medium is incorporated in a light waveguide. Laser activity of the fiber is attained in particular by doping the fiber core with ions of rare earths. The development of diode pumped fiber lasers has been rather successful recently. Diode lasers can provide concentrated pumping energy and thus enhance the efficiency of fiber lasers.

---

---

There's no product listing here. Be the first to submit your product information.

---