Parametrically shaped femtosecond pulses in the nonlinear regime obtained by reverse propagation in an optical fiber

Pawłowska, Monika; Patas, Alexander; Achazi, Georg; Lindinger, Albrecht

doi:10.1364/ol.37.002709

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…The inverse problem at hand is much more complex: from a pulse shape and spectrum that are generated after propagation in the fiber, the properly trained network should be able to retrieve the parameters , N as well as the regime of dispersion of the fiber. One could tackle this inverse problem by using reverse propagation, that is, solving the NLSE to the backward direction [22,23]. However, this method would require knowledge of the peak power (or energy) of the pulse at the fiber output, whereas we only consider here the pulse shape characteristics.…”

Section: B/ Retrieval Of the Propagation Characteristicsmentioning

confidence: 99%

Artificial neural networks for nonlinear pulse shaping in optical fibers

Boscolo

Finot

2020

Optics & Laser Technology

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We use a supervised machine-learning model based on a neural network to predict the temporal and spectral intensity profiles of the pulses that form upon nonlinear propagation in optical fibers with both normal and anomalous second-order dispersion. We also show that the model is able to retrieve the parameters of the nonlinear propagation from the pulses observed at the output of the fiber. Various initial pulse shapes as well as initially chirped pulses are investigated.

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Section: B/ Retrieval Of the Propagation Characteristicsmentioning

confidence: 99%

Artificial neural networks for nonlinear pulse shaping in optical fibers

Boscolo

Finot

2020

Optics & Laser Technology

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“…Due to the unbalanced higher-order dispersion and unmatched propagation power in the SMF and in the DCF, such a pulse shaper is suboptimal. Other pulse shaper implementations that lend themselves to a more efficient fiber delivery of femtosecond laser pulses deserve future investigation [35].…”

Section: Discussionmentioning

confidence: 99%

Spectro-temporal dispersion management of femtosecond pulses for fiber-optic two-photon endomicroscopy

Liang

Hall

2018

Opt. Express

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The emerging fiber-optic two-photon endomicroscopy technology holds a strong promise for enabling translational applications of nonlinear optical imaging. Effective femtosecond pulse dispersion management is critical for achieving high-quality imaging. Here we report systematic analyses and performance characterization of a dual-fiber spectro-temporal dispersion management scheme involving a grating pair as the pulse stretcher. Compared with conventional linear-only compensation, the grating-based spectro-temporal compensation also takes into account nonlinear effects and enhances the two-photon signal by ~3-fold as experimentally demonstrated. Numerical simulations were carried out to systematically investigate the influence of several key design parameters on the overall compensation efficacy. Furthermore, comprehensive performance comparison with an ideal grism-pair counterpart reveals that a grating-pair stretcher affords much higher power throughput and thus is preferable for portable endomicroscopy systems with limited laser source power.

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“…As we noted in [24], the use of a reverse propagation method [39,40] to solve this problem would require proper knowledge of the peak power (or energy) of the pulse at the fibre output, whereas we only consider here the pulse shape characteristics.…”

Section: Retrieval Of the Propagation Characteristicsmentioning

confidence: 99%