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Proceedings Article

Comparison between MZI and single phase modulator for generating 112 Gbit/s PDM-QPSK signal

[+] Author Affiliations
Junyi Wang, Kailu Gao, Lu Yang, Xuan He, Z. Pan

Univ. of Louisiana at Lafayette (USA)

Proc. SPIE 7988, Optical Transmission Systems, Switching, and Subsystems VIII, 79881W (February 18, 2011); doi:10.1117/12.887400
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From Conference Volume 7988

  • Optical Transmission Systems, Switching, and Subsystems VIII
  • Yikai Su; Ernesto Ciaramella; Xiang Liu; Naoya Wada
  • Shanghai, China | December 08, 2010

abstract

We demonstrated the QPSK signal generated by a single phase-modulator (PM-QPSK) is more tolerant to nonlinearity than that generated by the Mach Zehnder Interferometer (MZI-QPSK). With simulation of WDM system at 28 Gsymbol/s per polarization the performance of PM-QPSK and MZI-QPSK are compared when dispersion management is used. After 800 km's transmission in single-polarization transmission system, MZI-QPSK outperforms PM-QPSK because of its better tolerance to ISI. After 400 km's transmission in polarization multiplexing system, PM-QPSK outperforms MZI-QPSK by comparing the symbol error ratio with optimized launch power, which is because PM-QPSK has better nonlinearity tolerance in dispersion managed system.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Junyi Wang ; Kailu Gao ; Lu Yang ; Xuan He and Z. Pan
"Comparison between MZI and single phase modulator for generating 112 Gbit/s PDM-QPSK signal", Proc. SPIE 7988, Optical Transmission Systems, Switching, and Subsystems VIII, 79881W (February 18, 2011); doi:10.1117/12.887400; http://dx.doi.org/10.1117/12.887400


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