RP Fiber Power logo

RP Fiber Power — Simulation and Design Software for Fiber Optics, Amplifiers and Fiber Lasers

Overview	Interface	Physics	Speed
Demos	Power Forms	Fiber Data	Versions

Example Case: Higher-order Soliton Pulses

Description of the Model

Here, we simulate the evolution of higher-order soliton pulses in a fiber. The chromatic dispersion is calculated with the mode solver. As there is significant third-order dispersion, the soliton evolution somewhat deviates from that expected for a fiber with only second-order dispersion — particularly if the initial pulse is rather short. The simulation is done with an initial pulse which would correspond to a 4^th-order soliton if there were no higher-order dispersion.

Results

Figure 1 shows the evolution of the temporal shape.

higher-order soliton pulse — Figure 1: Temporal profile of the pulse, as it evolves along the fiber.

The fiber length is taken to be just one soliton period (92 m).

Figure 2 shows the same as a color diagram. Here, one sees more clearly that the initial pulse is not fully reproduced in the end. This is due to higher-order dispersion of the fiber. For longer pulses, this effect would be less pronounced.

Figure 3 shows the spectral evolution.

Figure 4 is an animated diagram, showing the evolution of the spectrogram of the pulse.

(back to the list of example cases)

Questions and Comments from Users

Here you can submit questions and comments. As far as they get accepted by the author, they will appear above this paragraph together with the author’s answer. The author will decide on acceptance based on certain criteria. Essentially, the issue must be of sufficiently broad interest.

Please do not enter personal data here. (See also our privacy declaration.) If you wish to receive personal feedback or consultancy from the author, please contact him, e.g. via e-mail.

By submitting the information, you give your consent to the potential publication of your inputs on our website according to our rules. (If you later retract your consent, we will delete those inputs.) As your inputs are first reviewed by the author, they may be published with some delay.