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Amplification of frequency-modulated pulses in graded dispersion erbium-doped optical fibers |
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| Authors: | I. O. Zolotovskii D. A. Korobko O. G. Okhotnikov D. I. Sementsov A. A. Sysolyatin A. A. Fotiadi |
| Affiliation: | 1. Ul??yanovsk State University, Ul??yanovsk, 432970, Russia 2. Optoelectronics Research Center, 31101, Tampere, Finland 3. Fiber Optics Research Center, Russian Academy of Sciences, Moscow, 119333, Russia 4. University of Mons, 87000, Mons, Belgium |
| Abstract: | The possibility of effective amplification of self-similar frequency-modulated pulses in longitudinally nonuniform erbium-doped optical fibers has been studied. A general expression is obtained for the coordinate dependence of the normal dispersion of group velocities that ensures ??fast?? amplification of the frequency-modulated pulses. It is shown that, at an optimum choice of the dispersion profile, subpicosecond pulses can be amplified up to energies above 1 nJ and peak powers above 50 kW. |
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