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Coherent detection of a 50 Gb/s QPSK signal using an InP 90 deg hybrid monolithically integrated with balanced photodetectors

 
: Ludwig, R.; Matiss, A; Bach, H.-G.; Molle, L.; Leonhardt, C.C.; Kunkel, R.; Schmidt, D.

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 pp.
European Conference and Exhibition on Optical Communication (ECOC) <35, 2009, Wien>
English
Conference Paper
Fraunhofer HHI ()

Abstract
Error-free detection of a single-polarization 50 Gb/s NRZ-QPSK signal using a coherent detector based on monolithic integration of a waveguide 90 deg hybrid with two pairs of high-speed balanced photo-detectors is demonstrated and the BER performance is evaluated in a 480 km transmission experiment.

: http://publica.fraunhofer.de/documents/N-113026.html