#getConfInfo.name#
WH1 - Digital Signal Processing III Session Presider: Domanic Lavery
8:30-10:00 Poinsettia/ Quince
WH1.1 -
Nonlinear Digital Pre-Distortion of Transmitter Components Invited
08:30-09:00
2017-10-04 08:30 2017-10-04 09:00 America/Denver Nonlinear Digital Pre-Distortion of Transmitter Components A concept for linear and nonlinear digital pre-distortion tailored to the components of optical high-speed transmitters is introduced and explained. The benefits of the pre-distortion for higher order modulation formats such as PDM-64-QAM and PDM-128-QAM are presented in back-to-back and transmission experiments. Hilton Santa Fe Historic Plaza Poinsettia/ Quince

    P. Wilke Berenguer , Fraunhofer HHI, Berlin, Germany, F. Frey , Ulm University, Ulm, Germany J. Fischer , Fraunhofer HHI, Berlin, Germany C. Schubert , Fraunhofer HHI, Berlin, Germany

    A concept for linear and nonlinear digital pre-distortion tailored to the components of optical high-speed transmitters is introduced and explained. The benefits of the pre-distortion for higher order modulation formats such as PDM-64-QAM and PDM-128-QAM are presented in back-to-back and transmission experiments.
WH1.2 -
Impact of finite-resolution DAC and ADC on probabilistically-shaped QAM constellations
09:00-09:15
2017-10-04 09:00 2017-10-04 09:15 America/Denver Impact of finite-resolution DAC and ADC on probabilistically-shaped QAM constellations We analyze the impact of finite resolution of DAC and ADC on the performance of coherent-detection optical communication systems using probabilistically-shaped 64-QAM constellations. We show that no substantial additional penalty is incurred with respect to uniformly distributed constellations with the same net data rate. Hilton Santa Fe Historic Plaza Poinsettia/ Quince

    G. Bosco , Politecnico di Torino, Torino, Italy, D. Pilori , Politecnico di Torino, Torino, Italy C. Fludger , Cisco Optical GmbH, Nuremberg, Germany

    We analyze the impact of finite resolution of DAC and ADC on the performance of coherent-detection optical communication systems using probabilistically-shaped 64-QAM constellations. We show that no substantial additional penalty is incurred with respect to uniformly distributed constellations with the same net data rate.
WH1.3 -
Impact of GVD on Polarization-insensitive Self-homodyne Detection Receiver
09:15-09:30
2017-10-04 09:15 2017-10-04 09:30 America/Denver Impact of GVD on Polarization-insensitive Self-homodyne Detection Receiver We investigate the performance of a polarization-insensitive self-homodyne detection receiver. The receiver uses a hybrid coherent and direct detection scheme. Performance is evaluated using QPSK signals and with 500kHz and 30MHz linewidth lasers. Reach up to 120 km is achieved with <1dB penalty. Hilton Santa Fe Historic Plaza Poinsettia/ Quince

    R. Luis , NICT, Koganei, Japan, B. Puttnam , NICT, Koganei, Japan G. Rademacher , NICT, Koganei, Japan S. Shinada , NICT, Koganei, Japan N. Wada , NICT, Koganei, Japan

    We investigate the performance of a polarization-insensitive self-homodyne detection receiver. The receiver uses a hybrid coherent and direct detection scheme. Performance is evaluated using QPSK signals and with 500kHz and 30MHz linewidth lasers. Reach up to 120 km is achieved with <1dB penalty.
WH1.4 -
In-band Crosstalk Analysis for Nyquist PDM-16QAM in Flexible Grid Transmission
09:30-09:45
2017-10-04 09:30 2017-10-04 09:45 America/Denver In-band Crosstalk Analysis for Nyquist PDM-16QAM in Flexible Grid Transmission The in-band crosstalk weighting metric is assessed using both simulations and experiments for a 200G Nyquist-shaped PDM-16QAM signal in 37.5GHz flexible grid system applications. The frequency offset impact on the weighting accuracy is investigated. Hilton Santa Fe Historic Plaza Poinsettia/ Quince

    J. Pan , Adva Optical Networking, Norcross, GA, United States, S. Tibuleac , Adva Optical Networking, Norcross, GA, United States

    The in-band crosstalk weighting metric is assessed using both simulations and experiments for a 200G Nyquist-shaped PDM-16QAM signal in 37.5GHz flexible grid system applications. The frequency offset impact on the weighting accuracy is investigated.
WH1.5 -
Performance Evaluation of Underwater Wireless Optical Communications Links in the Presence of Different Air Bubble Populations
09:45-10:00
2017-10-04 09:45 2017-10-04 10:00 America/Denver Performance Evaluation of Underwater Wireless Optical Communications Links in the Presence of Different Air Bubble Populations We experimentally generate air bubble of different sizes and evaluate their effect on the performance of underwater wireless optical communication (UWOC) systems. We found that there is a tradeoff between mitigating the deep fade caused by large bubbles and the level of received intensity reduced by small bubbles. In addition, we propose beam expansion technique to improve performance degradation caused by air bubbles. Hilton Santa Fe Historic Plaza Poinsettia/ Quince

    H. Oubei , KING ABDULLAH UNV OF SCI & TEC, Thuwal, Saudi Arabia, B. Ooi , KING ABDULLAH UNV OF SCI & TEC, Thuwal, Saudi Arabia

    We experimentally generate air bubble of different sizes and evaluate their effect on the performance of underwater wireless optical communication (UWOC) systems. We found that there is a tradeoff between mitigating the deep fade caused by large bubbles and the level of received intensity reduced by small bubbles. In addition, we propose beam expansion technique to improve performance degradation caused by air bubbles.