10 Gbit/s mode-multiplexed QPSK transmission using MDM-to-MFDM based single coherent receiver for intra- and inter data center networking

Rameez Asif, Mustafa Haithem

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Generalized few-mode-fiber (FMF) transmission uses N coherent receivers for mode detection, where N scales with the number of fiber modes. Multiple coherent receivers increase the cost of optical network units (ONUs) in access networks, specifically for intra- and inter data center applications. We have experimentally evaluated a cost effective low-complexity receiver architecture based on mode-division multiplexing (MDM) to mode frequency-division multiplexing (MFDM) conversion for data center connectivity. A single coherent receiver is used to efficiently detect 10 Gbit/s QPSK Nyquist signals over 2.8 km 4-LP mode graded index fiber reducing the ONUs complexity to N/4. All the transmitted modes are successfully detected below the forward-error-correction (FEC) limit, i.e. 1×10−3 BER.

Original languageEnglish
Pages (from-to)106-110
Number of pages5
JournalOptics Communications
Publication statusPublished - 15 May 2017


  • Coherent receivers
  • Data Centers
  • Networks
  • Optical fiber communication
  • Space division Multiplexing
  • Spatial light modulators

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