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Investigation of DGD and delay-line interferometer phase tolerance of integrated receiver module for 86 Gb/s NRZ-DQPSK modulation

: Nielsen, M.L.; Steffan, A.G.; Tsianos, G.; Unterborsch, G.; Umbach, A.; Ludwig, R.; Boutin, A.; Fulop, L.; Verluise, F.

Institute of Electrical and Electronics Engineers -IEEE-:
ECOC 2009, 35th European Conference and Exhibition on Optical Communication. Proceedings : Wien, AT, September 20-24, 2009
Piscataway, NJ: IEEE, 2009
ISBN: 978-1-4244-5096-1
2 S.
European Conference and Exhibition on Optical Communication (ECOC) <35, 2009, Wien>
Fraunhofer HHI ()

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±5°, far exceeding the PDFS.