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Journal: Optics Express
Languages: English
Types: Article
Subjects:

Classified by OpenAIRE into

arxiv: Computer Science::Information Theory
We propose a novel 16-quadrature amplitude modulation (QAM) transmitter based on two cascaded IQ modulators driven by four separate binary electrical signals. The proposed 16-QAM transmitter features scalable configuration and stable performance with simple bias-control. Generation of 16-QAM signals at 40 Gbaud is experimentally demonstrated for the first time and visualized with a high speed constellation analyzer. The proposed modulator is also compared to two other schemes. We investigate the modulator bandwidth requirements and tolerance to accumulated chromatic dispersion through numerical simulations, and the minimum theoretical insertion attenuation is calculated analytically.
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    • 12. M. Seimetz, “Performance of Coherent Optical Square-16-QAM-Systems Based on IQ-Transmitters and Homodyne Receivers with Digital Phase Estimation,” in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2006), paper NWA4. http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2006-NWA4
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Published in

Funded by projects

  • EC | EURO-FOS
  • EC | PHASORS
  • SFI | Photonics System Research

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