A laser beam travels through optical elements, it is dispersed by a prism into three colors.

Ultrafast Soft


Hussar

Hussar is a highly flexible Matlab framework for solving propagation problems. The software is based on the mix of the Unidirectional Pulse Propagation Equation approach and the "not necessarily slowly varying envelope" concept. This composition enables an accurate modeling and small memory requirements.
Download Hussar here.

Versions

1.1 (2017.05.10) Current version with a few bug fixes and several new features. The approximated noncollinear propagation was removed from this version (manual for version 1.1) .
1.0 (2016.06.28) Older version with approximated noncollinear propagation enabled (manual for version 1.0)

Support

Manual - basic informations on the software usage for version 1.1, for version 1.0
Class and Function Reference Manual - Definitions of the classes and functions for the Hussar library. The manual is a work in progress particular parts of it are being completed on the user request, pleas don't hesitate to contact or to use any of the following methods to contact the team and direct us to complete particular chapters.
Ultrafast Soft on Facebook - through our Facebook website one can track news, contact the team, report bugs and submit "user's wishes".
News Letter - through news letter we inform about new Hussar releases (we are keeping it brief and rare). Go to download Hussar page to subscribe for news letter.
Mailing list - Users can contact development team and each other almost instantaneously through the mailing list. One can subscribe via web page, subscribe via email, or through download Hussar page.
Forum - Announcements, bug reporting and whish list can also be found on our forum.

On your laboratory PC

Hussar has been created for PC computers. 4GB RAM is enough for running simulations with 3 envelopes (SFG/DFG/OPA etc.) and 4 million points in the grid of each envelope (e.g grid of 128x128x256 points in 3D and 1024x4096 points in 2D simulation).

Availability

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Creative Commons License


Features

Linear effects

Linear pulse and beams propagation in birefringent media can easily be performed (in single step). All: 1+1D (T+Z), 2+1D (beam XY+Z, and pulses in cartesian TX+Z or cylindrical TR+Z coordinates) and 3+1D (TXY+Z) simulations can be performed. On the right a visualization of a Laguerre-Gaussian LP01 mode propagation in biaxial BiBO crystal is presented.

Three wave mixing

All three wave mixing phenomena: SHG, SFG, DFG, OPA, fluorescene up conversion, etc. can be simulated both in collinear and non-collinear configurations apart of 3+1D (TXY+Z) simulations for large beam sizes the fast 2+1D (TX+Z) simulation can be performed. An example of blue light pumped NOPA simulation is presented in the top of the page.

Supercontinuum generation

Supercontinuum generation in bulk materials is possible in 3+1D (TXY+Z) or 2+1D (TR+Z) cylindrical coordinates. Apart from SPM (= Self-Focusing), SRS, Self-Steepening and linear effects the photoionization (Multiphoton or Keldysh model) and current interaction (Drude model) can be included.





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News

2017.02.22
Super compact and efficient tripler

See our article on the subject in Scientific Reports and some more details here: (more).
2017.02.05
NPE in PM fiber now published

See our article on the subject in Optics Letters and some more details here: (more).
2016.10.04
ML in PMF via NPE

Just before Yuri Stepanenko did his talk on Laser Technique Symposium (PL) we have submitted a patent claim on mode-locking (forcing pulsed operation) of polarization maintaining fiber based lasers via nonlinear polarization evolution. Hopefully soon you'll be able to read all about it in one of reviewed journals.
2016.04.28
Spectral compression in CVBG

How to get a narrowband pulse? See our last publication (Spectral compression of femtosecond pulses using chirped volume Bragg gratings) on how to make it when starting from broadband one. (more)
2016.03.22
Diamond of Hamburg

Tomasz Kardaś is in Max Planck Institute (DESY Hamburg) where he's polishing supercontinuum generation in diamond simulation and does some simulation trainings. (more)
2016.01.29
Fiber Supercontinuum

The all-PM-fiber oscillator developed in Laser Centre will be used as a source for in fiber supercontinuum generation. (more)
2016.18.01
Hussar and Hydra
Our team was granted access to the Hydra supercomputer of the ICM. The main goal is to go parrallel with Hussar, but its the current version will also be used for supercontinuum generation modeling.
2015.12.10
Hamburg Supercontinuum Challenge

Hussar will be used for supercontinuum generation simulation in bulk optical crystals. Will this be a beginning of a beautiful friendship with a group from Max Planck Institute? (more)
2015.10.07
Will Hussar go parallel?
On Thursday (2015.10.15) at 10:00 Tomasz Kardaś will give a seminar at Interdisciplinary Centre for Mathematical and Computational Modelling (ICM). The subject - quantum noise in the OPCPA systems and possibility of parallelization of the Hussar software. (more)
2015.09.30

New Power Range
When you're in need Hussar will come to your help. This time it becomes a tool for the new Terawatt OPCPA design. (more)

2015.09.15
NOPA vs OPA - Hussar resolves

Parametric amplifier based on the femtosecond laser oscillator? Not a challenge to our team. The question arises, however, for such small pulse energies, which is better: NOPA or simple OPA? (more)
2015.06.26
Meet us at PKO2015
Tomasz Kardaś will be at Polish Optical Conference in Legnica with a talk on Hussar. He will also present a poster about UPPL and our software working in real time on a tablet PC. You can meet him during poster session.