Multimode-based short-reach optical communication systems: versatile design framework

Igor Koltchanov; Eugene Sokolov; Roza Navitskaya; Alexander Uvarov; André Richter

doi:10.1117/12.2545927

31 January 2020 Multimode-based short-reach optical communication systems: versatile design framework

Igor Koltchanov, Eugene Sokolov, Roza Navitskaya, Alexander Uvarov, André Richter

Proceedings Volume 11308, Metro and Data Center Optical Networks and Short-Reach Links III; 113080M (2020) https://doi.org/10.1117/12.2545927
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Short-reach transmission technologies based on multimode sources and fiber infrastructure remain highly attractive and competitive against single-mode solutions. We present here details of a versatile integrated multimode simulation framework targeting the design, analysis, and optimization of such systems. Important aspects that are addressed here are detailed multimode signal representations, mode solvers, models for signal propagation in multimode fibers, multimode VCSEL models, models to calculate the coupling between various multimode devices, and system-level building blocks specifying and measuring the characteristics of the overall system. The multimode VCSEL model, for instance, simulates different emission frequencies of the individual modes, considers their dependence on the bias current and laser temperature, and accounts properly for mode competition. In addition to accurate modeling of signal propagation in multimode fibers, statistical analysis of the link performance can be conducted to account for profile defects altering the fiber and link characteristics. A dedicated coupler model simulates launch conditions of multimode transmitters and assesses power coupling losses at fiber-fiber interfaces with the coupled devices being separated in free space and misaligned relative to each other. Besides discussing device modeling details, we present virtual test benches for measuring typical characteristics, such as the Encircled Flux of the launch system, DMD and EMBc of the multimode fibers, as well as system performance characteristics, to determine whether the simulated system and its individual components meet industry-accepted requirements.

Conference Presentation

Citation Download Citation

Igor Koltchanov, Eugene Sokolov, Roza Navitskaya, Alexander Uvarov, and André Richter "Multimode-based short-reach optical communication systems: versatile design framework", Proc. SPIE 11308, Metro and Data Center Optical Networks and Short-Reach Links III, 113080M (31 January 2020); https://doi.org/10.1117/12.2545927

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