Design and applications of in-cavity pulse shaping by spectral sculpturing in mode-locked fibre lasers


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.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (
Uncontrolled Keywords: mode-locked fibre lasers,nonlinear fibre optics,frequency filtering,nonlinear pulse shaping,Fluid Flow and Transfer Processes,Process Chemistry and Technology,Computer Science Applications,Engineering(all),Materials Science(all),Instrumentation
Publication ISSN: 2076-3417
Last Modified: 06 Jun 2024 07:11
Date Deposited: 17 Dec 2015 10:15
Full Text Link: http://www.mdpi ... 6-3417/5/4/1379
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-11-25
Accepted Date: 2015-11-13
Submitted Date: 2015-10-20
Authors: Boscolo, Sonia (ORCID Profile 0000-0001-5388-2893)
Peng, Junsong
Finot, Christophe



Version: Published Version

License: Creative Commons Attribution

Export / Share Citation


Additional statistics for this record