RP Fiber Power – Simulation and Design Software for Fiber Optics, Amplifiers and Fiber Lasers
| Overview | Interface | Physics | Speed |
| Demos | Power Forms | Fiber Data | Versions |
Here, you find a number of video demos, various detailed demonstration case studies and various nice graphics made with the software.
| Case Studies | Video Demos | Nice Graphics |
Case Studies with RP Fiber PowerCase Studies Using Power FormsWe have many interesting case studies for which we have used our Power Forms. This demonstrates how versatile these Power Forms are.
Case Study: Mode Structure of a Multimode FiberWe explore various properties of guided modes of multimode fibers. We also test how the mode structure of such a fiber reacts to certain changes of the index profile, e.g. to smoothening of the index step. #modes
Case Study: Number of Modes of a Highly Multimode FiberWe seek a simple equation for estimating for the number of modes of a highly multimode fiber, which can be applied to fiber designs with arbitrary shapes of the refractive index profile. Instead of applying complicated mathematics, we build a hypothesis and subject that to multiple numerical tests. #modes
Case Study: The Numerical Aperture of a Fiber: a Strict Limit for the Acceptance Angle?The requirement of total internal reflection would seem to set a strict limit for the angular distributions of fiber modes. However, some modes are found to exceed that limit significantly. We investigate that in detail for single-mode, few-mode and multimode fibers. #modes
Case Study: Dispersion Engineering for Telecom FibersWe explore different ways of optimizing refractive index profile for specific chromatic dispersion properties of telecom fibers, resulting in dispersion-shifted or dispersion-flattened fibers. This also involves automatic optimizations. #modes#dispersion#telecom
Case Study: Telecom Fiber With Parabolic Index ProfileWe investigate how intermodal dispersion of a multimode fiber can be minimized with a parabolic doping profile. #modes#telecom
Case Study: Erbium-doped Fiber Amplifier for a Long-wavelength SignalAmplified spontaneous emission (ASE) turns out to be a limiting factor, requiring a dual-stage amplifier design. #amplifiers#ASE#telecom
Case Study: Erbium-doped Fiber Amplifier for Rectangular Nanosecond PulsesWe deal with deformations of the pulse shape due to gain saturation. These can be minimized by pre-distorting the input pulses. #amplifiers#pulses
Case Study: Erbium-doped Fiber Amplifier for Multiple SignalsWe optimize an amplifier for equal output powers of signals spanning a substantial wavelength range. There is a trade-off between power efficiency and noise performance. #amplifiers#telecom
Case Study: ASE in Ytterbium-doped FibersWe study various aspects of amplified spontaneous emission (ASE) in ytterbium-doped fibers – for example, why it is different in forward and backward direction, how the fiber length can have a crucial impact, and how the fiber core diameter matters. #amplifiers#ASE
Case Study: Designing a Double-clad Fiber AmplifierWe develop a double-clad fiber amplifier with high gain, where we have to care about limiting losses by ASE. #amplifiers#ASE
Case Study: Ytterbium-doped 975-nm Fiber LasersWe explore how to realize Yb-doped fiber lasers emitting at the tricky wavelength of 975 nm. This turns out to be challenging for devices with double-clad fibers due to ASE at longer wavelengths. #lasers#ASE
Case Study: Nonlinear Pulse Compression in a FiberWe explore how we can spectrally broaden light pulses by self-phase modulation in a fiber and subsequently compress the pulses using a dispersive element. A substantial reduction in pulse duration by more than an order of magnitude is easily achieved, while the pulse quality is often not ideal. #pulses#nonlinearities
Case Study: Parabolic Pulses in a Fiber AmplifierWe explore the regime of parabolic pulse amplification in an Yb-doped single-mode fiber. We find suitable system parameters and investigate limiting effects. #amplifiers#pulses#nonlinearities
Case Study: Numerical Experiments With Soliton Pulses in FibersWe investigate various details of soliton pulse propagation in passive fibers, using numerical simulations. #pulses#nonlinearities
Case Study: Collision of Soliton Pulses in a FiberWe let two soliton pulses collide in a fiber. Surprisingly, they survive such collisions, even if we involve solitons of higher order. #pulses#nonlinearities
Case Study: Soliton Self-frequency Shift in Glass FibersWe numerically simulate the soliton self-frequency shift, which is caused by stimulated Raman scattering. Influences like higher-order dispersion are found to be quite relevant. #pulses#nonlinearities
Case Study: Soliton Pulses in a Fiber AmplifierWe investigate to which extent soliton pulses could be amplified in a fiber amplifier, preserving the soliton shape and compressing the pulses temporally. #amplifiers#pulses#nonlinearities
Case Study: Raman Scattering in a Fiber AmplifierWe investigate the effects of stimulated Raman scattering in an ytterbium-doped fiber amplifier for ultrashort pulses, considering three very different input pulse duration regimes. Surprisingly, the effect of Raman scattering always gets substantial only on the last meter, although the input peak powers vary by two orders of magnitude. #amplifiers#pulses#nonlinearities
Case Study: Chirped-pulse Ytterbium-doped Fiber Amplifier SystemWe design an ytterbium-doped chirped-pulse fiber amplifier system. We investigate how the remaining nonlinear effects limit the possible performance parameters. #amplifiers#pulses
Case Study: Supercontinuum Generation in a Germanosilicate Single-mode Telecom FiberWe explore supercontinuum generation in telecom fibers. This works well for wavelengths beyond the zero dispersion wavelength. For operation with shorter-wavelength pulses, other fibers are required. #pulses These case studies demonstrate how useful the modeling is for the development of fiber amplifiers and lasers, for example. (More example cases with Power Forms are in preparation!) Case Studies Using Demo ScriptsThe following example cases are all related to the demo scripts delivered with the software. That approach can be applied even to most special cases. A first set of examples illustrates the power of the mode solver and the numerical beam propagation:
Further demo files show how to simulate fiber amplifiers and lasers (only steady-state calculations): Here are some examples of dynamic simulations:
Next, there are demonstrations for simulating the propagation of ultrashort pulses:
Finally, a demonstration for generating output in other forms: Even more demo files (in total more than 70) are delivered with the software. As a user, you can simply copy demo scripts and modify them according to your needs. However, you may also easily generate new scripts using the interactive forms. | ||
