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Silicon-on-insulator (SOI) delay-line interferometer with low polarization-dependent frequency shift for 40 Gbit/s DPSK demodulation

 
: Zimmermann, L.; Voigt, K.; Winzer, G.; Mitze, T.; Bruns, J.; Petermann, K.; Richter, T.; Schubert, C.

Verband der Elektrotechnik, Elektronik, Informationstechnik -VDE-; IEEE Lasers and Electro-Optics Society; Informationstechnische Gesellschaft -ITG-; Institution of Engineering and Technology -IET-:
ECOC 2007, 33rd European Conference and Exhibition on Optical Communication. Vol.3: Proceedings, Wednesday, September 19, 2007 : September 16 - 20, 2007, Berlin, Germany
Berlin: VDE Verlag, 2007
S.161-162
European Conference on Optical Communication (ECOC) <33, 2007, Berlin>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()
Mach-Zehnder Interferometer; SOI-Technik; Streifenleiter; C-Band; Leistungsverlust; Frequenzverschiebung; Bit-Fehlerhäufigkeit; Phasendifferenzmodulation; Demodulation

Abstract
A 40 Gbit/s SOI (silicon on insulator) rib-waveguide delay-and-add interferometer is presented. Across the C-band the authors demonstrate high uniformity, low loss, PDL (polarization dependent loss), and PDFS (polarization dependent frequency shift) (< 1 GHz). RZ & NRZ DPSK (return-to-zero & non return-to-zero differential phase shift keying) balanced-detection measurements at 40 Gbit/s are included. Here they shall present a Mach-Zehnder Delay-Interferometer (MZDI) device realized in SOI rib-waveguide technology, which exhibits very low PDFS. Since the device is to be integrated with a balanced photodiode pair to form a DPSK receiver chip, RZ & NRZ DPSK balanced detection eye-measurements are included to demonstrate demodulation functionality. For RZ-DPSK the bit-error ratio of the demodulated signal was measured as well
Entnommen aus TEMA

: http://publica.fraunhofer.de/dokumente/N-65085.html