<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The paper presents a simulation model developed for a special optical coupler intended for coupling radiation from signal and pump sources used for the realization of cladding-pumped doped fibre amplifiers. The model is developed in COMSOL Multiphysics and used to assess the pumping efficiency for different side pumping angles and different numbers of electromagnetic modes. The obtained results show that the highest pumping efficiency, above 75 %, is achieved for 5–14 modes when two fibres representing the pump source and the signal source form a 10-degree angle between their central axes. The search for the optimal number of modes corresponds to the development trend in optical coupler technology where the multimode pumping by light-emitting diode (LED) replaces the classical scheme with a single-mode pumping by a laser diode (LD).</p>
</abstract>

The paper presents a simulation model developed for a special optical coupler intended for coupling radiation from signal and pump sources used for the realization of cladding-pumped doped fibre amplifiers. The model is developed in COMSOL Multiphysics and used to assess the pumping efficiency for different side pumping angles and different numbers of electromagnetic modes. The obtained results show that the highest pumping efficiency, above 75 %, is achieved for 5–14 modes when two fibres representing the pump source and the signal source form a 10-degree angle between their central axes. The search for the optimal number of modes corresponds to the development trend in optical coupler technology where the multimode pumping by light-emitting diode (LED) replaces the classical scheme with a single-mode pumping by a laser diode (LD).

Fibre Optical Coupler Simulation by Comsol Multiphysics Software

Latvian Journal of Physics and Technical Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Fibre Optical Coupler Simulation by Comsol Multiphysics Software"}

The paper presents a simulation model developed for a special optical coupler intended for coupling radiation from signal and pump sources used for the...

Fibre Optical Coupler Simulation by Comsol Multiphysics Software

Publié en ligne: 13 oct. 2022

Pages: 3 - 14

DOI: https://doi.org/10.2478/lpts-2022-0036

Mots clés
COMSOL MULTIPHYSICS, double-clad fibre, optical coupler, side pumping

© 2022 E. Elsts et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fibre Optical Coupler Simulation by Comsol Multiphysics Software

Publié en ligne: 13 oct. 2022

Pages: 3 - 14

DOI: https://doi.org/10.2478/lpts-2022-0036

Mots clésCOMSOL MULTIPHYSICS, double-clad fibre, optical coupler, side pumping

© 2022 E. Elsts et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
COMSOL MULTIPHYSICS, double-clad fibre, optical coupler, side pumping