Three-dimensional schematic and cross-sectional view of a holmium-doped ZBLAN photonic crystal fiber, illustrating the microstructured air-hole cladding, air-hole diameter (dₐ), and pitch (Λ). The ...
The first demonstration of the laser in 1960 was rapidly followed by the birth of a new research field: nonlinear optics. The unique coherence properties of stimulated emission, the fundamental ...