Dispersion-related amplification in a nonlinear fiber pumped by counterpropagating waves.
We investigate the dispersion-related amplification induced by two counterpropagating waves in a nonlinear fiber and demonstrate that this system can provide broadband (of the order of terahertz) and large (>10(5)) amplification even in the presence of absorption, with the pumping significantly below the threshold of instability.
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Law
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Kaplan