Method to generate 112Gbit/s polarisation-multiplexed 8QAM signal

H. Y. Choi*, T. Tsuritani, I. Morita

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Proposed is a new method to synthesise the 8-ary quadrature amplitude modulation (8QAM) signal and demonstrate the 112Gbit/s polarisation-multiplexed 8QAM system. The proposed transmitter consists of a dual-drive Mach-Zehnder modulator (DD-MZM) and phase modulators in tandem. The DD-MZM is utilised to manipulate the amplitude and phase of the optical signal by adjusting its chirp. The optical signal-to-noise ratio sensitivity of the 112Gbit/s polarisation-multiplexed 8QAM signal to achieve the bit error rate of 10 -3 is measured to be 18.8dB (in 0.1nm resolution bandwidth).

Original languageEnglish
Pages (from-to)511-513
Number of pages3
JournalElectronics Letters
Issue number9
Publication statusPublished - 2012 Apr 26
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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