VAD Optical Fibers

Zinc selenide optical fibers.

200 μm MRSEC researchers have fabricated the first optical Fibers made from zinc selenide, using a high-pressure Chemical deposition technique invented in the MRSEC. Optical fibers are a cornerstone of modern science and technology, yet remain fundamentally limited by the types of materials from which they can be made. With these new ZnSe fibers, it is now possible to exploit the materials prop...

Nonlinearities of Optical Fibers

Birefringence in Optical Fibers: Applications

As discussed in the previous chapter, the so-called single-mode fibers in fact support two modes simultaneously, which are orthogonally polarized. In an ideal circular-core fiber, these two modes will propagate with the same phase velocity; however, practical fibers are not perfectly circularly symmetric. As a result, the two modes propagate with slightly different phase and group velocities. F...

Nonlinearity measurement of optical fibers

Dispersion phenomena in optical fibers

Dispersion represents a broad class of phenomena related to the fact that the velocity of the electromagnetic wave depends on the wavelength. In telecommunication the term of dispersion is used to describe the processes which cause that the signal carried by the electromagnetic wave and propagating in an optical fiber is degradated as a result of the dispersion phenomena. This degradation occur...