Radiation Physics and EMI Coupling Path Determination for Optical Links
Optical transceiver modules are used in high-end and low-end switches and routers. These modules, located in the optical i/o ports at the front-end of the system chassis, can contribute significantly to the system level EMI at high frequencies. In this paper, a mode stirred reverberation chamber (RC) is used to analyze the EMI performance of the optical modules. Three EMI leakage points are identified from the optical i/o ports. Using the results from four experimental configurations, coupling paths and unintentional current paths are proposed for the optical link. This can help provide insight to EMC design engineers about the radiation physics associated with optical links and potential mitigation solutions.
J. Li et al., "Radiation Physics and EMI Coupling Path Determination for Optical Links," IEEE International Symposium on Electromagnetic Compatibility, pp. 576-581, Institute of Electrical and Electronics Engineers (IEEE), Aug 2014.
The definitive version is available at https://doi.org/10.1109/ISEMC.2014.6899037
2014 IEEE International Symposium on Electromagnetic Compatibility (2014: Aug. 4-8, Raleigh, NC)
Electrical and Computer Engineering
Center for High Performance Computing Research
Second Research Center/Lab
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Electromagnetic compatibility; Optical links; Optical transceivers; Reverberation; Coupling paths; Current paths; High frequency HF; Mode stirred reverberation chamber; Optical modules; Optical transceiver modules; Radiation physics; System levels; Optical switches
International Standard Serial Number (ISSN)
Article - Conference proceedings
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