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Open AccessArticle

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