Investigation of DGD and Delay-Line Interferometer Phase Tolerance of Integrated Receiver Module for 86 Gb/s NRZ-DQPSK modulation

Conference: ECOC 2009 - 35th European Conference on Optical Communication
09/20/2009 - 09/24/2009 at Vienna, Austria

Proceedings: ECOC 2009

Pages: 2Language: englishTyp: PDF

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Nielsen, M. L.; Steffan, A. G.; Tsianos, G.; Unterbörsch, G.; Umbach, A. (u2t Photonics AG, Reuchlinstr. 10-11, 10553 Berlin, Germany)
Ludwig, R. (Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, Einsteinufer 37, 10587 Berlin, Germany)
Boutin, A.; Fulop, L.; Verluise, F. (Kylia, 10, rue de Montmorency, 75003 Paris, France)

We investigate the performance of a free-space DLI integrated receiver for 43 Gbaud/s NRZ-DQPSK. The DGD tolerance (1dB penalty) is quantified at 47% of the baudrate, and the DLI phase tolerance (1dB penalty) at ±5deg, far exceeding the PDFS.