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Modeling & Design Software
Technical consulting services on lasers, nonlinear optics, fiber optics etc.
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Powerful simulation and design software.
Make computer models in order to get a comprehensive understanding of your devices!
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powerful tools for efficient laser development and laser science
This page gives you an overview on our software products.
RP Fiber Calculator is a convenient tool for calculations on optical fibers.
RP Fiber Power is an extremely flexible tool for designing and optimizing fiber devices.
RP Resonator is a particularly flexible tool for laser resonator design.
RP ProPulse can simulate the pulse evolution e.g. in mode-locked lasers and sync-pumped OPOs.
RP Coating is a particularly flexible design tool for dielectric multilayer systems.
RP Q-switch can simulate the power evolution in Q-switched lasers.
Most of our software products support a powerful script language, which gives you an extraordinary degree of flexibility.
Here you learn about software license conditions, updates and upgrades, etc.
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RP Fiber Power – Simulation and Design Software
for Fiber Optics, Amplifiers and Fiber Lasers

The Ultimate Tool for Passive and Active Fibers Devices

RP Fiber Power is a powerful modeling software for designing and optimizing fiber devices – in particular, fiber amplifiers and lasers as well as other types of waveguide lasers, but also fiber couplers, multi-core fibers, helical core fibers and tapered fibers.

The software offers both efficient power propagation and full numerical beam propagation. Ultrashort pulse propagation can also be studied, for example in fiber amplifier systems, mode-locked fiber lasers, telecom cables and automatically optimized pulse compressors.

RP Fiber Power is

It is a must-have for anyone seriously dealing with fiber devices – be it in industrial development, scientific research or in education. Its user interface combines uttermost flexibility with an easy start. It is therefore equally well suited for efficient routine checks and for most sophisticated simulation work.

The Product Brochure

The following brochure explains the software in some detail:

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Note that you can flip the pages by clicking on the left or right side of the brochure display.

You can also download the brochure in PDF format.

See also our detailed presentation on how computer simulations can make your laser development more efficient:


Quick Tour Video

This video gives you a quick tour through the whole RP Fiber Power software: how to calculate fiber modes, numerically simulate beam propagation, model a fiber amplifier or laser, simulate the propagation of ultrashort pulses, and how to do utilize the enormous flexibility of the built-in script language. You also get an impression on the convenient user interface. Just click on the image below and wait for a few seconds.

RP Fiber Power demo quick tour video

Note that various other demo videos, addressing more specific aspects of the software, are available on our demo page.


RP Fiber Power can be applied to analyze and optimize a wide range of devices:

Devices Example for Applications

single-mode and multimode fibers


calculate mode properties such as amplitude distributions, effective mode areas, effective indices, chromatic dis­persion; calculate fiber coupling efficiencies; simulate effects of bending, nonlinear self-focussing or gain guiding on beam propagation, higher-order soliton propagation

fiber couplers, double-clad fibers, multi-core fibers,
planar lightwave circuits

fiber devices

simulate pump absorption in double-clad fibers, study beam propagation in fiber couplers, light propagation in tapered fibers, analyze the impact of bending, cross-saturation effects in amplifiers, leaky modes, etc.

fiber amplifiers

fiber amplifier

study the gain and saturation characteristics (continuous-wave or pulse amplification), energy transfers in erbium-ytterbium-doped amplifier fibers, influence of quenching effects, amplified spontaneous emission etc. in single amplifier stages or in multi-stage amplifier systems

fiber-optic telecom systems

fiber-optic link

analyze dispersive and nonlinear signal distortions, impact of amplifier noise, optimize nonlinear management and placement of amplifiers

fiber lasers

fiber laser

analyze and optimize the power conversion efficiency, wavelength tuning range, Q switching dynamics

ultrafast fiber lasers and amplifiers

mode-locked fiber laser

study pulse formation mechanisms, stability ranges, impact of nonlinearities and chromatic dispersion, parabolic pulse amplification, optimum dispersive pulse compression, feedback sensitivity, supercontinuum generation

pulsed and ultrafast bulk lasers and amplifiers

regenerative amplifier

study Q switching, the mode-locking behavior, find the required characteristics of saturable absorbers, analyze the feedback sensitivity, chirped-pulse amplification study stability limits of regenerative amplification

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