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Fiber Bragg Gratings Filter WDM Signals

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Fiber Bragg gratings are efficient tools for multiplexing and demultiplexing WDM signals and for chromatic-dispersion compensation.

Breck Hitz

Fiber Bragg gratings are versatile wavelength filters for multiplexing and demultiplexing wavelength division multiplexing (WDM) signals. They also can compensate for chromatic dispersion that can degrade the quality of the WDM signal in an optical fiber. Such a grating is, in fact, a fiber with a core that has a sinusoidal variation of refractive index (Figure 1). This variation affects the phase of light passing through the grating so that some wavelengths interfere constructively and some destructively. Figure 1. A fiber Bragg grating is most efficient as a WDM signal filter...Read full article

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    Published: March 2003
    CommunicationsFeaturesfiber Bragg gratingsfiber opticshromatic-dispersion compensationmultiplexing and demultiplexing WDM signals

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