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Due to the very small core area in optical fibers, as the power contained is increased the power density can become high enough to induce non-linear effects and/or fiber damage. In order to reduce power density the mode area of some fibers is designed to be larger, while maintaining single-mode performance, by reducing the NA and increasing the core diameter. This means that higher powers can be handled before non-linear effects occur.

Related Products:Multimode Pump Fiber

Related Terms: Core , Cross section, Large Mode Area (LMA) fiber, Multimode, Nonlinear Effects, Nonlinear Index, Nonlinear Parameter, Numerical Aperture (NA), Power Density, Single-Mode