120 Gbit/s injection-locked homodyne coherent transmission of polarization-multiplexed 64 QAM signals over 150 km

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10 Citations (Scopus)

Abstract

We describe an injection-locked 64 QAM homodyne coherent transmission, which is the highest QAM multiplicity realized with an injection locking technique. The frequency locking range of the local oscillator (LO) was as wide as 1 GHz. The phase noise was only 0.2 deg, which is 1/3 of that obtained with our previous OVCO-based OPLL (0.6 deg.). As a result, a 120 Gbit/s polarization-multiplexed 64 QAM signal was successfully transmitted over 150 km with a simple receiver configuration and low DSP complexity.

Original languageEnglish
Pages (from-to)31310-31316
Number of pages7
JournalOptics Express
Volume22
Issue number25
DOIs
Publication statusPublished - 2014 Dec 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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