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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 37,
  • Issue 2,
  • pp. 651-656
  • (2019)

Real-Time 10 Gbps Polarization Independent Quasicoherent Receiver for NG-PON2 Access Networks

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Abstract

In this paper, we propose and test experimentally a real-time 10 Gbps polarization independent quasicoherent receiver for NG-PON2 access networks. The proposed 10 Gbps quasicoherent receiver exhibits a sensitivity of −35.2 dBm after 40 km standard single mode fiber (SSMF) transmission with a commercial generic EML as transmitter. This sensitivity means a 14.9 dB improvement over a direct detection scheme with a photodiode after 40 km SSMF transmission. Therefore, the use of the proposed 10 Gbps quasicoherent receiver with the tested EML will provide a power budget of 35.64 dB (class E2) and a splitting ratio of 128 after the 40 km SSMF transmission. Finally, the proposed 10 Gbps quasicoherent receiver allows a colorless and optical filterless operation because wavelength selection is done by tuning the local oscillator wavelength and using electrical intermediate frequency filtering.

© 2018 IEEE

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