Multi-Gigabit Spatial-Division Multiplexing Transmission over Multicore Plastic Optical Fiber

Itay Yahav, Nir Sheffi, Yacov Biofcic, Dan Sadot

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Today, we are evident to the revolution of the automotive industry and its demand for high bandwidth sensor fusion. Multiple high bandwidth sensors are connected, generating tremendous amount of data to be transferred in real-time in harsh environment, i.e., multi-gigabit intra-vehicle networks. Plastic optical fiber (POF) is an attractive medium for these multi-gigabit intra-vehicle networks due to its inherent EM compatibility, galvanic isolation, low weight, high tolerance to mechanical vibrations, low bending loss, and easy handling. However, commercial off-the-shelf PMMA based POFs are bandwidth-length product limited. Here, we suggest increasing the spectral efficiency using spatial-division multiplexing (SDM). In this article, we have experimentally demonstrated a low cost and eye-safe 3 × 3 multiple-input multiple-output (MIMO) SDM system over a 15 meters multicore (MC) POF using commercial optical components, e.g., RC-LEDs and Si-PIN photodiodes. A 3 × 1 spot-based cores coupler spatial multiplexer was developed to couple the optical components with the MC-POF. This system achieved raw data rates of 1.5 Gb/s and 2.4 Gb/s using offline-processed MIMO equalization. The proposed system enables a flexible and scalable optical MIMO system that can meet the requirements of the automotive industry.

Original languageEnglish
Article number9328553
Pages (from-to)2296-2304
Number of pages9
JournalJournal of Lightwave Technology
Issue number8
StatePublished - 15 Apr 2021


  • Automotive
  • MIMO
  • multicore optical fiber
  • plastic optical fiber
  • signal processing
  • spatial-division multiplexing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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