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Opt Express. 2008 Mar 17;16(6):4206-16.

High-order dispersion in chirped-pulse oscillators.

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Institüt für Photonik, TU Wien, Gusshausstr. 27/387, A-1040 Vienna, Austria.


The effects of high-order dispersion on a chirped-pulse oscillator operating in the positive dispersion regime were studied both theoretically and experimentally. It was found that odd and negative even high-order dispersions impair the oscillator stability owing to resonance with the dispersion waves, but can broaden the spectrum as in the case of continuum generation in the fibers. Positive fourth-order dispersion enhances the stability and shifts the stability range into negative dispersion. The destabilization mechanism was found to be a parametrical instability which causes noisy mode locking around zero dispersion.

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