A robust modulation format for 42.8-Gbit/s long-haul transmission: RZ-DPSK or RZ-DQPSK?

Conference: Photonische Netze - 7. ITG-Fachtagung
04/27/2006 - 04/28/2006 at Leipzig, Germany

Proceedings: Photonische Netze

Pages: 6Language: englishTyp: PDF

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Borne, D. van den; Jansen, S. L.; Khoe, G. D.; Waardt, H. de (COBRA Institute, Eindhoven University of Technology, The Netherlands)
Gottwald, E.; Krummrich, P. M.; Leisching, P. (Siemens AG, Communications, Fixed networks, Munich, Germany)

In this paper we investigate the difference in transmission impairments between 42.8-Gbit/s RZ-DPSK and RZ-DQPSK modulation for long-haul transmission on a 50-GHz grid. We analyze the impact of narrowband filtering and discuss the influence it has on long-haul transmission using the RZ-DPSK and RZ-DQPSK modulation formats.