Minimum Dispersion Window

The Window of an optical Fiber at which material Dispersion is very small.

Note 1: In silica-based fibers, the minimum-dispersion window occurs at a Wavelength of approximately 1.3 m.

Note 2: The minimum-dispersion window may be shifted toward the minimum-loss window, i.e. , 1.55 m, by the addition of dopants during manufacture.

2 . In a single-mode fiber, the window or, in the case of doubly or quadruply clad fibers, windows, at which material and Waveguide dispersion cancel one another, resulting in extremely wide bandwidth, i.e. , extremely low dispersion, over a very narrow Range of wavelengths. Synonym Zero Dispersion window.

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