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Appl. Sci. 2015, 5(4), 1379-1398; doi:10.3390/app5041379

Design and Applications of In-Cavity Pulse Shaping by Spectral Sculpturing in Mode-Locked Fibre Lasers

1
Aston Institute of Photonic Technologies, School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
2
Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne/Franche-Comté, 9 avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
*
Author to whom correspondence should be addressed.
Academic Editor: Totaro Imasaka
Received: 20 October 2015 / Revised: 10 November 2015 / Accepted: 13 November 2015 / Published: 25 November 2015
(This article belongs to the Special Issue Fibre Lasers: From Underlying Science and Technology to Applications)
View Full-Text   |   Download PDF [814 KB, uploaded 25 November 2015]   |  

Abstract

We review our recent progress on the realisation of pulse shaping in passively-mode-locked fibre lasers by inclusion of an amplitude and/or phase spectral filter into the laser cavity. We numerically show that depending on the amplitude transfer function of the in-cavity filter, various regimes of advanced waveform generation can be achieved, including ones featuring parabolic-, flat-top- and triangular-profiled pulses. An application of this approach using a flat-top spectral filter is shown to achieve the direct generation of high-quality sinc-shaped optical Nyquist pulses with a widely tunable bandwidth from the laser oscillator. We also present the operation of an ultrafast fibre laser in which conventional soliton, dispersion-managed soliton (stretched-pulse) and dissipative soliton mode-locking regimes can be selectively and reliably targeted by adaptively changing the dispersion profile and bandwidth programmed on an in-cavity programmable filter. The results demonstrate the strong potential of an in-cavity spectral pulse shaper for achieving a high degree of control over the dynamics and output of mode-locked fibre lasers. View Full-Text
Keywords: mode-locked fibre lasers; nonlinear pulse shaping; frequency filtering; nonlinear fibre optics mode-locked fibre lasers; nonlinear pulse shaping; frequency filtering; nonlinear fibre optics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Boscolo, S.; Peng, J.; Finot, C. Design and Applications of In-Cavity Pulse Shaping by Spectral Sculpturing in Mode-Locked Fibre Lasers. Appl. Sci. 2015, 5, 1379-1398.

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