In-cavity pulse shaping and dissipative parametric instability mode-locking in fibre lasers

Nikita Tarasov, Sonia Boscolo, Junsong Peng, Christophe Finot, Auro Perego, Dmitry Churkin, Sergei Turitsyn, K. Staliunas

Research output: Contribution to conferenceAbstract

Abstract

At the level of fundamental research, fibre lasers provide convenient and reproducible experimental settings for the study of a variety of nonlinear dynamical processes, while at the applied research level, pulses with different and optimised features – e.g., in terms of pulse duration, temporal and/or spectral shape, energy, repetition rate and emission bandwidth – are sought with the general constraint of developing efficient cavity architectures.
In this work, we review our recent progress on the realisation of pulse shaping in passively- mode-locked fibre lasers by inclusion of an amplitude and phase spectral filter into the laser cavity. We present a fibre laser design in which pulse shaping occurs through filtering of a spectrally nonlinearly broadened pulse in the cavity. This strategy of pulse shaping is illustrated through the numerical demonstration of the laser operation in different pulse-generation regimes, including parabolic, flattop and triangular waveform generations, depending on the amplitude profile of the in-cavity spectral filter [1]. As an application of this general approach, we show that the use of an in-cavity flat-top spectral filter makes it possible to directly generate sinc-shaped Nyquist pulses of high quality and of a widely tunable bandwidth from the laser [2]. We also report on a recently-developed versatile erbium-doped fibre laser, in which conventional soliton, dispersion-managed soliton (stretched-pulse) and dissipative soliton mode-locking regimes can be selectively and reliably targeted by programming different group-velocity dispersion profiles and bandwidths on an in-cavity programmable filter [3].
Further, we report on our recent results on the passive mode locking of a Raman fibre laser by a recently predicted new type of parametric instability – the dissipative Faraday instability [4], where spatially periodic zig-zag modulation of spectrally dependent losses can lead to pattern formation in the temporal domain. High-order harmonic mode locking is achieved in a very simple experimental configuration, with the laser cavity including an optical fibre and two chirped fibre Bragg gratings, and no additional mode-locking elements. The results not only open up new possibilities for the design of mode-locked lasers, but extend beyond fibre optics to other fields of physics and engineering.
References
[1] S. Boscolo, C. Finot, H. Karakuzu, P. Petropoulos, “Pulse shaping in mode-locked fiber laser by in-cavity spectral filter,” Opt. Lett., vol. 39, pp. 438–441, 2014.
[2] S. Boscolo, C. Finot, S. K. Turitsyn, “Bandwidth programmable optical Nyquist pulse generation in passively mode-locked fiber laser,” IEEE Photon. J., vol. 7, 7802008(8), 2015.
[3] J. Peng, S. Boscolo, “Filter-based dispersion-managed versatile ultrafast fibre laser,” Sci. Rep., 2016, In press.
[4] A. M. Perego, N. Tarasov, D. V. Churkin, S. K. Turitsyn, K. Staliunas, “Pattern generation by dissipative parametric instability,” Phys. Rev. Lett., vol. 116, 028701, 2016.
Original languageEnglish
Pages60
Number of pages1
Publication statusPublished - Jul 2016
Event25th Annual International Laser Physics Workshop (LPHYS 2016) - Elite Plaza Business Center & Best Western Congress Hotel, Yerevan, Armenia
Duration: 10 Jul 201615 Jul 2016
http://www.lasphys.com/workshops/

Conference

Conference25th Annual International Laser Physics Workshop (LPHYS 2016)
Abbreviated titleLPHYS 2016
CountryArmenia
CityYerevan
Period10/07/1615/07/16
Internet address

Bibliographical note

Book of Abstracts of the 25th Annual International Laser Physics Workshop (LPHYS 2016), Article number: S8.4.1

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  • Research Output

    Calculation of mutual information for nonlinear optical fiber communication channel at large SNR within path-integral formalism

    Reznichenko, A. V., Terekhov, I. S. & Turitsyn, S. K., 20 Apr 2017, In : Journal of Physics. 826, 1, 10 p., 012026.

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  • Cite this

    Tarasov, N., Boscolo, S., Peng, J., Finot, C., Perego, A., Churkin, D., Turitsyn, S., & Staliunas, K. (2016). In-cavity pulse shaping and dissipative parametric instability mode-locking in fibre lasers. 60. Abstract from 25th Annual International Laser Physics Workshop (LPHYS 2016), Yerevan, Armenia.