Optics Letters 2017-07-19

Nonlinear spectrum broadening cancellation by sinusoidal phase modulation

Frederic Audo, Sonia Boscolo, Julien Fatome, Bertrand Kibler, and Christophe Finot

Index: 10.1364/OL.42.002902

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Abstract

We propose and experimentally demonstrate a new approach to dramatically reduce the spectral broadening induced by self-phase modulation occurring in a Kerr medium. By using a temporal sinusoidal phase modulation, we efficiently cancel to a large extent the chirp induced by the nonlinear effect. Experimental validation carried out in a passive or amplifying fiber confirms the interest of the technique for the mitigation of the spectral expansion of long pulses.

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