Details
Original language | English |
---|---|
Article number | 108257 |
Journal | Computer Physics Communications |
Volume | 273 |
Early online date | 16 Dec 2021 |
Publication status | Published - Apr 2022 |
Abstract
Keywords
- physics.optics, physics.comp-ph, Spectrograms, Analytic signal, Python3, Raman effect, Open source, Ultrashort optical pulse propagation
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Computer Science(all)
- Hardware and Architecture
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In: Computer Physics Communications, Vol. 273, 108257, 04.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - py-fmas: A python package for ultrashort optical pulse propagation in terms of forward models for the analytic signal
AU - Melchert, Oliver
AU - Demircan, Ayhan
N1 - Funding Information: We acknowledge financial support from the Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy within the Clusters of Excellence PhoenixD (Photonics, Optics, and Engineering – Innovation Across Disciplines) (EXC 2122, projectID 390833453 ).
PY - 2022/4
Y1 - 2022/4
N2 - We present a flexible, open-source Python package for the accurate simulation of the \(z\)-propagation dynamics of ultrashort optical pulses in nonlinear waveguides, especially valid for few-cycle pulses and their interaction. The simulation approach is based on unidirectional propagation equations for the analytic signal. The provided software allows to account for dispersion, attenuation, four-wave mixing processes including, e.g., third-harmonic generation, and features various models for the Raman response. The propagation equations are solved on a periodic temporal domain. For \(z\)-propagation, a selection of pseudospectral methods is available. Propagation scenarios for a custom propagation constant and initial field pulses can either be specified in terms of a HDF5 based input file format or by direct implementation using a python script. We demonstrate the functionality for a test-case for which an exact solution is available, by reproducing exemplary results documented in the scientific literature, and a complex propagation scenario involving multiple pulses. The py-fmas code, its reference manual, an extended user guide, and further usage examples are available online at https://github.com/omelchert/py-fmas.
AB - We present a flexible, open-source Python package for the accurate simulation of the \(z\)-propagation dynamics of ultrashort optical pulses in nonlinear waveguides, especially valid for few-cycle pulses and their interaction. The simulation approach is based on unidirectional propagation equations for the analytic signal. The provided software allows to account for dispersion, attenuation, four-wave mixing processes including, e.g., third-harmonic generation, and features various models for the Raman response. The propagation equations are solved on a periodic temporal domain. For \(z\)-propagation, a selection of pseudospectral methods is available. Propagation scenarios for a custom propagation constant and initial field pulses can either be specified in terms of a HDF5 based input file format or by direct implementation using a python script. We demonstrate the functionality for a test-case for which an exact solution is available, by reproducing exemplary results documented in the scientific literature, and a complex propagation scenario involving multiple pulses. The py-fmas code, its reference manual, an extended user guide, and further usage examples are available online at https://github.com/omelchert/py-fmas.
KW - physics.optics
KW - physics.comp-ph
KW - Spectrograms
KW - Analytic signal
KW - Python3
KW - Raman effect
KW - Open source
KW - Ultrashort optical pulse propagation
UR - http://www.scopus.com/inward/record.url?scp=85121666624&partnerID=8YFLogxK
U2 - 10.1016/j.cpc.2021.108257
DO - 10.1016/j.cpc.2021.108257
M3 - Article
VL - 273
JO - Computer Physics Communications
JF - Computer Physics Communications
SN - 0010-4655
M1 - 108257
ER -