English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We propose a three dimensional Discontinuous Petrov-Galerkin Maxwell approachfor modeling Raman gain in fiber laser amplifiers. In contrast with popularbeam propagation models, we are interested in a truly full vectorial approach.We apply the ultraweak DPG formulation, which is known to carry desirableproperties for high-frequency wave propagation problems, to the coupled Maxwellsignal/pump system and use a nonlinear iterative scheme to account for theRaman gain. This paper also introduces a novel and practical full-vectorialformulation of the electric polarization term for Raman gain that emphasizesthe fact that the computer modeler is only given a measured bulk Raman gaincoefficient. Our results provide promising qualitative corroboration of themodel and methodology used.

A 3D DPG Maxwell Approach to Nonlinear Raman Gain in Fiber Laser Amplifiers