Cross-Phase Modulation (XPM) is a nonlinear optical effect where the phase of a light signal is modulated by the intensity of another co-propagating signal within the same medium, often observed in optical fibers. It is a critical phenomenon in wavelength-division multiplexing systems, impacting signal integrity and requiring careful management to optimize communication performance.

Cross-Phase Modulation

nonlinear optical effect

phase of a light signal

intensity of another co-propagating signal

Optical fibers are flexible, transparent fibers made of glass or plastic that transmit light between two ends of the fiber, primarily used in telecommunications and networking due to their high bandwidth and low attenuation properties. They operate on the principle of total internal reflection, allowing light to be guided through the core even if the fiber is bent or twisted.

optical fibers

wavelength-division multiplexing systems

Signal integrity refers to the quality and reliability of electrical signals as they travel through a transmission medium, ensuring that the signals are received without distortion or loss. It is crucial in high-speed digital circuits where any degradation can lead to errors in data transmission and system failures.

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