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Reconfigurable structured light generation in a multicore fibre amplifier
Structured light is a valuable addition to many optical applications. Here, the authors introduce a method for producing tailorable structured light beams at the output of a multicore fiber amplifier by controlling the input to each fiber core.
- Di Lin
- , Joel Carpenter
- & David J. Richardson
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Article
| Open Access
Spectro-temporal encoded multiphoton microscopy and fluorescence lifetime imaging at kilohertz frame-rates
Two-photon microscopy has been limited by low acquisition rates due to mechanical scanners. Here, the authors employ pulse-modulated, rapidly wavelength-swept lasers and inertia-free beam steering through angular dispersion in order to achieve non-linear microscopy with kilohertz frame rates.
- Sebastian Karpf
- , Carson T. Riche
- & Bahram Jalali
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Article
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Formation of optical supramolecular structures in a fibre laser by tailoring long-range soliton interactions
Optical solitons have been studied in a variety of systems for their unique properties. Here, the authors report on optically observed solitonic supramolecules, made up of large-scale structures of many solitons interacting within a fiber cavity, and study their fundamental characteristics.
- W. He
- , M. Pang
- & P. St. J. Russell
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Article
| Open Access
Analysis of laser radiation using the Nonlinear Fourier transform
Mathematical approaches for simultaneous characterisation of localized and extended fields in optical signals are not well developed. Here, the authors demonstrate the application of the Nonlinear Fourier transform approach based on the Zakharov-Shabat spectral problem for the analysis of fibre laser radiation.
- Srikanth Sugavanam
- , Morteza Kamalian Kopae
- & Sergei K. Turitsyn
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Article
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Optical soliton molecular complexes in a passively mode-locked fibre laser
It has recently been shown that optical solitons can form stably bound states, so-called soliton molecules. Here, Wang et al. demonstrate stable soliton molecule complexes and explore the different bonds represented by the inter- and intra-molecular coupling.
- Z. Q. Wang
- , K. Nithyanandan
- & Ph. Grelu
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Article
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Statistical parity-time-symmetric lasing in an optical fibre network
Parity-time-symmetric optical systems have so far only been realized using microscopic cavities because the necessary gain-loss balance is thought to be fragile with regard to statistical fluctuations. Here, Jahromi et al.. demonstrate PT-symmetric lasing using kilometre-long fibre cavities.
- Ali K. Jahromi
- , Absar U. Hassan
- & Ayman F. Abouraddy
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Article
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Turbulence hierarchy in a random fibre laser
Random fibre lasers constitute a class of lasers where the optical feedback is provided by multiple scattering in a disordered system. Here, Gonzálezet al. theoretically and experimentally study the statistical turbulence behaviour in relation to the lasing transition in such lasers.
- Iván R. Roa González
- , Bismarck C. Lima
- & Raman Kashyap
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Article
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Spectral correlations in a random distributed feedback fibre laser
The feedback mechanism in random fibre lasers has been insofar deemed incoherent. To reveal the dynamic evolution of the random fibre laser spectra, Sugavanamet al. use a real-time spectral measurement technique and observe long-lived narrowband components in the random fibre laser’s spectrum.
- Srikanth Sugavanam
- , Mariia Sorokina
- & Dmitry V. Churkin
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Article
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Wave kinetics of random fibre lasers
Kinetic theory is a mathematical framework that is used to describe non-linear systems with a large number of degrees of freedom. Here, the authors develop a concept of active wave kinetics of cyclic systems and describe the function of random fibre laser.
- D V. Churkin
- , I V. Kolokolov
- & S K. Turitsyn
A mode-locked random laser generating transform-limited optical pulses