Customizing supercontinuum generation via on-chip adaptive temporal pulse-splitting

Wetzel, Benjamin; Kues, Michael; Roztocki, Piotr; Reimer, Christian; Godin, Pierre-Luc; Rowley, Maxwell; Little, Brent E.; Chu, Sai T.; Viktorov, Evgeny A.; Moss, David J.; Pasquazi, Alessia; Peccianti, Marco; Morandotti, Roberto

doi:10.1038/s41467-018-07141-w

Cited by 68 publications

(44 citation statements)

References 49 publications

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“…Genetic algorithms can also be used for these purposes, and their application to solve highly nonlinear optimisation problems such as fibre supercontinuum generation has also been very successful [44][45][46][47]. Using custom pulse train preparation via an integrated pulse-splitter, a genetic algorithm was used to optimize supercontinuum dynamics to maximize spectral intensity in specific wavelength bands [47] (Fig. 4B).…”

Section: Control Of Coherent Dynamicsmentioning

confidence: 99%

Machine learning and applications in ultrafast photonics

et al. 2020

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Recent years have seen the rapid growth and development of the field of smart photonics, where machine learning algorithms are being matched to optical systems to add new functionalities and to enhance performance. An area where machine learning shows particular potential to accelerate technology is the field of ultrafast photonics -the generation and characterization of light pulses, the study of light-matter interactions on short timescales, and high-speed optical measurements. Our aim here is to highlight a number of specific areas where the promise of machine learning in ultrafast photonics has already been realized, including the design and operation of pulsed lasers, and the characterization and control of ultrafast propagation dynamics. We also consider challenges and future areas of research.

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Section: Control Of Coherent Dynamicsmentioning

confidence: 99%

Machine learning and applications in ultrafast photonics

et al. 2020

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“…Optical fibers have been the primary medium for supercontinuum generation for their strong confinement of pump laser light, as well as for the feasibility of chromatic dispersion engineering, which significantly simplifies matching of the nonlinear medium's optical properties to intended pump lasers, compared to non-fiber systems (Alfano and Shapiro 1970a, b;Dudley et al 2006). Coherent and spectral properties of fiber-based supercontinuum can be widely modified to fulfill various application requirements (Klimczak et al 2017;Wetzel et al 2018;Genier et al 2019). In 2000, Ranka et al (2000) demonstrated for the first time supercontinuum generation in photonic crystal fibers (PCFs).…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum generation in nanostructured core gradient index fibers

Forestier

Karpate

Huss³

et al. 2020

Appl Nanosci

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We report on near-infrared supercontinuum generation in a submeter-long single-mode, nanostructured core fiber. The fiber core is composed of few thousand pure silica and germanium-doped silica glass nanorods with diameter of 200 nm each. The nanorods' distribution is calculated based on the Maxwell-Garnett effective medium approach to mimic effective parabolic refractive index distribution in the fiber core. The standard stack-and-draw method was used to scale down the fiber structure and obtain subwavelength nanorods in the core. Size and distribution of individual nanorods are essential to determine modal and dispersion properties of the fiber without assistance of air holes in the fiber cladding. We study supercontinuum generation performance in this nanostructured core fiber pumping with low-cost microchip laser operating at 1550 nm with 1 ns pulse length and pulse energy of 0.4 µJ. A modulation instability-driven supercontinuum is generated in the fiber, covering a wavelength span of 1400-2300 nm. Due to possibility of dispersion engineering and all-solid structure the nanostructured fibers offer new possibilities for development of low-cost all-fiber supercontinuum light sources for the near-infrared range and cascaded ultrabroadband supercontinuum all-fiber systems.

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“…В статье [4] рассмотрены различные способы генерирования импульсов Найквиста с использованием оптоэлектронных и оптических компонентов, а также дана обширная библиография. В работе [5] рассматривается группа методов управления формой НЧС оптического сигнала с использованием импульсов лазера длительностью порядка 200 фс и оптического волокна с нелинейной передаточной характеристикой. Определенным ограничением предлагаемых в работах [2][3][4][5] методов является их ограниченная универсальность: они дают хорошие результаты для определенных форм НЧС.…”

Section: Introductionunclassified

“…В работе [5] рассматривается группа методов управления формой НЧС оптического сигнала с использованием импульсов лазера длительностью порядка 200 фс и оптического волокна с нелинейной передаточной характеристикой. Определенным ограничением предлагаемых в работах [2][3][4][5] методов является их ограниченная универсальность: они дают хорошие результаты для определенных форм НЧС. Принципиальная возможность аппроксимации произвольной НЧС короткими импульсами лазера гауссовой формы дана в работах [6,7], а в статье [8] дана более общая теория.…”

Section: Introductionunclassified

The approximation of optical signals by short laser pulses in the form of a hyperbolic secant

Odegov¹

2018

Problemi Telekomunìkacìj

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At present time have been developed methods to improve the signal bandwidth of fiber-optical transmission systems (FOTS). A special case of such methods is considered in earlier works of the author. The essence of the proposed methods is to transfer more than one bit of information in one clock interval. The fundamental complexity of the implementation of such methods is the need to form a low-frequency component (envelope) of an optical signal of a given shape. A solution to this problem is proposed using a single laser pulse. In this case, the laser pulse is fed to the inputs of optical amplifiers, and from their outputs-to the inputs of delay lines with a precision step. As a result of the summation of the signals from the outputs of the delay lines, an approximant of a given optical signal is formed. This article assumes that the laser pulse has the form of a hyperbolic secant. A proof of the convergence of the corresponding approximants to functions of a given type is given. A numerical analysis confirming the solutions has been also performed. It is shown that the rate of convergence is of the order of 1/N, where N is the number of approximating pulses (the number of delay lines). It is shown that the proposed solutions are consistent with the characteristics of modern FOTS and can be implemented at the existing technological level of manufacturing optical components.

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Customizing supercontinuum generation via on-chip adaptive temporal pulse-splitting

Cited by 68 publications

References 49 publications

Machine learning and applications in ultrafast photonics

Machine learning and applications in ultrafast photonics

Supercontinuum generation in nanostructured core gradient index fibers

The approximation of optical signals by short laser pulses in the form of a hyperbolic secant

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