Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends

El-Darawy M, Herath V, Pfau T, Hoffmann S, Peveling R, Adamczyk O, Wördehoff C, Noe R, Rückert U (2009)
In: 10. ITG-Fachtagung "Photonische Netze". Leipzig, Germany: ITG/VDE.

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Abstract
In this paper we present the characterization results of an optical coherent quadrature phase shift keying (QPSK) receiver with an application-specific integrated circuit (ASIC) based backend unit. Additionally we investigate the performance of an integrated optical coherent receiver frontend (ICR) and compare it against a fiber-pigtailed 90deg optical hybrid. After characterization of the CMOS ASIC, we measure and analyze single polarization QPSK transmission at 2.5 Gbaud with different optical receiver frontend setups. Also we measure the polarization-multiplexed QPSK transmission and discuss the possible reasons for reduced sensitivity compared to the single-polarization transmission.
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El-Darawy M, Herath V, Pfau T, et al. Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends. In: 10. ITG-Fachtagung "Photonische Netze". Leipzig, Germany: ITG/VDE; 2009.
El-Darawy, M., Herath, V., Pfau, T., Hoffmann, S., Peveling, R., Adamczyk, O., Wördehoff, C., et al. (2009). Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends. 10. ITG-Fachtagung "Photonische Netze".
El-Darawy, M., Herath, V., Pfau, T., Hoffmann, S., Peveling, R., Adamczyk, O., Wördehoff, C., Noe, R., and Rückert, U. (2009). “Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends” in 10. ITG-Fachtagung "Photonische Netze" (Leipzig, Germany: ITG/VDE).
El-Darawy, M., et al., 2009. Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends. In 10. ITG-Fachtagung "Photonische Netze". Leipzig, Germany: ITG/VDE.
M. El-Darawy, et al., “Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends”, 10. ITG-Fachtagung "Photonische Netze", Leipzig, Germany: ITG/VDE, 2009.
El-Darawy, M., Herath, V., Pfau, T., Hoffmann, S., Peveling, R., Adamczyk, O., Wördehoff, C., Noe, R., Rückert, U.: Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends. 10. ITG-Fachtagung "Photonische Netze". ITG/VDE, Leipzig, Germany (2009).
El-Darawy, Mohamed, Herath, Vijitha, Pfau, Timo, Hoffmann, Sebastian, Peveling, Ralf, Adamczyk, Olaf, Wördehoff, Christian, Noe, Reinhold, and Rückert, Ulrich. “Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends”. 10. ITG-Fachtagung "Photonische Netze". Leipzig, Germany: ITG/VDE, 2009.
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