EMI coupling paths in silicon optical sub-assembly package

Li, Jing; Li, Xiao; Jiao, Xiangyang; Toor, Sukhjinder; Zhang, Ling; Bhobe, Alpesh; Drewniak, James L.; Pommerenke, David

doi:10.1109/isemc.2016.7571768

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…The optical sub-assembly (OSA) module was modeled in full-wave simulations [2]. The real structure and simulation model for the OSA module is shown in Figure 2.…”

Section: Modeling Optical Sub-assembly (Osa) Modulementioning

confidence: 99%

“…Firstly, the simulation model for the OSA module needs to correlate well with measurements. The adopted strategy [2] was to gradually increase the model complexity and verify the model accuracy step by step. TRP comparison was used for model validation.…”

Section: Modeling Optical Sub-assembly (Osa) Modulementioning

confidence: 99%

“…In Figures 3-5, the TRP results of simulation and measurement agree reasonably well, indicating the accuracy of the simulation model. Several experiments were designed to quantify the contributions from different parts of the model by utilizing an absorbing material [2], as shown in Figure 6. This systematic investigation concludes that the connector and the flex cables are two dominant radiation sources above 10 GHz.…”

Section: Modeling Optical Sub-assembly (Osa) Modulementioning

confidence: 99%

“…First, the interior EMI coupling paths and possible mitigation methods of optical modules are studied [1][2][3][4][5][6]. The internal mechanism can be analyzed to alleviate the radiation problem at the design stage or propose mitigation solutions.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is challenging to run reliable full-wave simulations for intricate structures. The adopted strategy in [1,2] is to correlate the total radiated power (TRP) in simulation and measurement to ensure a reliable simulation model. Based on the simulation model, the EMI coupling paths are also investigated.…”

Section: Introductionmentioning

confidence: 99%

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High-Frequency Electromagnetic Interference Diagnostics

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Feng²,

Fan³

et al. 2022

Electromagnetic Wave Propagation for Industry and Biomedical Applications

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Electromagnetic interference (EMI) is becoming more troublesome in modern electronic systems due to the continuous increase of communication data rates. This chapter reviews some new methodologies for high-frequency EMI diagnostics in recent researches. Optical modules, as a typical type of gigahertz radiator, are studied in this chapter. First, the dominant radiation modules and EMI coupling paths in an explicit optical module are analyzed using simulation and measurement techniques. Correspondingly, practical mitigation approaches are proposed to suppress the radiation in real product applications. Moreover, an emission source microscopy (ESM) method, which can rapidly localize far-field radiators, is applied to diagnose multiple optical modules and identify the dominant sources. Finally, when numerous optical modules work simultaneously in a large network router, a formula based on statistical analysis can estimate the maximum far-field emission and the probability of passing electromagnetic compatibility (EMC) regulations. This chapter reviews a systematic procedure for EMI diagnostics at high frequencies, including EMI coupling path analysis and mitigation, emission source localization, and radiation estimation using statistical analysis.

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“…The optical sub-assembly (OSA) module was modeled in full-wave simulations [2]. The real structure and simulation model for the OSA module is shown in Figure 2.…”

Section: Modeling Optical Sub-assembly (Osa) Modulementioning

confidence: 99%

Section: Modeling Optical Sub-assembly (Osa) Modulementioning

confidence: 99%

Section: Modeling Optical Sub-assembly (Osa) Modulementioning

confidence: 99%