Quadruply clad fiber


Quadruply clad fiber

In fiber optics, a quadruply clad fiber is a single-mode optical fiber that has four claddings. Each cladding has a refractive index lower than that of the core. With respect to one another, their relative refractive indices are, in order of distance from the core: lowest, highest, lower, higher.

A quadruply clad fiber has the advantage of very low macrobending losses. It also has two zero-dispersion points, and moderately low dispersion over a wider wavelength range than a singly clad fiber or a doubly clad fiber.

References

*Federal Standard 1037C


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  • Zero-dispersion wavelength — In a single mode optical fiber, the zero dispersion wavelength is the wavelength or wavelengths at which material dispersion and waveguide dispersion cancel one another. In all silica based optical fibers, minimum material dispersion occurs… …   Wikipedia


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