EMI Coupling Paths and Mitigation in Optical Transceiver Modules

Abstract

Optical transceiver modules are commonly used in telecommunication and data communication systems, and are among the most troublesome electromagnetic interference (EMI) problems for regulatory compliance at their operation frequencies and/or harmonics. In this study, simulations and measurements are performed on an optical subassembly module, including the silicon photonics submodule assembly, in order to identify and characterize the EMI coupling paths. The total radiated power is measured and computed. Through simulation and corroborating measurements, the dominant EMI coupling paths at high frequencies above 10 GHz are identified and characterized, and currents on the silicon photonic subassembly conductor housing and optical fiber connection ferrule are a dominant radiating source. EMI mitigation methods are developed and shown to be effective in reducing the radiated emissions from real product hardware.

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Sponsor(s)

IEEE Electromagnetic Compatibility Society

Keywords and Phrases

Electromagnetic interference (EMI) coupling paths; EMI sources; Mitigation; Optical transceiver modules; Total radiated power (TRP)

International Standard Serial Number (ISSN)

0018-9375

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Dec 2017

Link to Full Text

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