Abstract
In this paper we consider nonlinear impairments of mode division multiplexed signals with QAM modulation in optical fibers with linear mode coupling of spatial modes. We simulate simultaneous propagation of fundamental mode and two first-order vortex modes in standard single mode fiber at 850 nm and propagation of fundamental mode and first-and second-order vortices in step-index fiber with enlarged core at 1550 nm. Simulation results shows that in strong coupling regime linear coupling lead to sufficient increasing of nonlinear impairments, but QAM-modulated signal is more robust to this effect than OOK modulated signal.
Original language | English |
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Title of host publication | Proceedings of SPIE |
Number of pages | 9 |
Volume | 10774 |
Publisher | SPIE - International Society for Optical Engineering |
Publication date | 1 Jan 2018 |
Article number | 107741U |
ISBN (Electronic) | 9781510621190 |
DOIs | |
Publication status | Published - 1 Jan 2018 |
Event | 15th International Conference on Optical Technologies for Telecommunications - Kazan, Russian Federation Duration: 20 Nov 2017 → 23 Nov 2017 Conference number: 15 |
Conference
Conference | 15th International Conference on Optical Technologies for Telecommunications |
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Number | 15 |
Country/Territory | Russian Federation |
City | Kazan |
Period | 20/11/2017 → 23/11/2017 |
Series | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 10774 |
ISSN | 0277-786X |
Keywords
- few-mode fibers
- Kerr-nonlinearities
- mode division multiplexing
- vortex modes