We demonstrate a great variability of single-pulse (with only one pulse/wave-packet traveling along the cavity) generation regimes in fiber lasers passively mode-locked by non-linear polarization evolution (NPE) effect. Combining extensive numerical modeling and experimental studies, we identify multiple very distinct lasing regimes with a rich variety of dynamic behavior and a remarkably broad spread of key parameters (by an order of magnitude and more) of the generated pulses. Such a broad range of variability of possible lasing regimes necessitates developing techniques for control/adjustment of such key pulse parameters as duration, radiation spectrum, and the shape of the auto-correlation function. From a practical view point, availability of pulses/wave-packets with such different characteristics from the same laser makes it imperative to develop variability-aware designs with control techniques and methods to select appropriate application-oriented regimes.
Bibliographical note2014 The Authors. Published by Elsevier Inc.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
Funding: Marie Curie International Exchange Scheme, Research Executive Agency Grant ‘‘TelaSens’’ No 269271; ERC project ULTRALASER; Grants of Ministry of Education and Science of the Russian Federation (agreement No. 14.B25.31.0003; basic research order No. ZN-06-14 (2419); order No. 3.162.2014/K); Russian President Grant MK-4683.2013.2; Grant of SKOLKOVO Foundation (G-13-131); Council of the Russian President for the Leading Research Groups (project No. NSh-4447.2014.2)
- fiber laser
- non-linear polarization evolution
- passively mode-locked laser
- ultrafast laser