A comparison of modulation formats for passive optical networks

The sensitivity of polarization-switched QPSK (PS-QPSK) is compared to polarization-division-multiplexed QPSK (PDM-QPSK) and BPSK (PDM-BPSK) at a constant bitrate (12.5 Gbit/s). PS-QPSK is found to achieve the theoretical sensitivity advantage of 1.76 dB over PDM-BPSK.

[1]  Andrew J. Viterbi,et al.  Nonlinear estimation of PSK-modulated carrier phase with application to burst digital transmission , 1983, IEEE Trans. Inf. Theory.

[2]  L. Nelson,et al.  Experimental comparison of coherent polarization-switched QPSK to polarization-multiplexed QPSK for 10 × 100 km WDM transmission. , 2011, Optics express.

[3]  M. Karlsson,et al.  Which is the most power-efficient modulation format in optical links? , 2009, Optics express.

[4]  K. Motoshima,et al.  Forward error correction based on block turbo code with 3-bit soft decision for 10-Gb/s optical communication systems , 2004, IEEE Journal of Selected Topics in Quantum Electronics.

[5]  H. Bulow,et al.  Experimental study of polarization-switched-QPSK subcarrier modulation and iterative demapping on optical OFDM systems , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[6]  S. P. Lloyd,et al.  Least squares quantization in PCM , 1982, IEEE Trans. Inf. Theory.

[7]  D. Lavery,et al.  Generation and long-haul transmission of polarization-switched QPSK at 42.9 Gb/s. , 2011, Optics express.

[8]  Xiang Liu,et al.  Demonstration of record sensitivity in an optically pre-amplified receiver by combining PDM-QPSK and 16-PPM with pilot-assisted digital coherent detection , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[9]  Seb J Savory,et al.  Digital filters for coherent optical receivers. , 2008, Optics express.

[10]  David S Millar,et al.  Blind adaptive equalization of polarization-switched QPSK modulation. , 2011, Optics express.

[11]  Seb J. Savory,et al.  Bidirectional 10 Gbit/s long-reach WDM-PON using digital coherent receivers , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[12]  K. Kikuchi,et al.  Evaluation of Sensitivity of the Digital Coherent Receiver , 2008, Journal of Lightwave Technology.

[13]  S. Savory,et al.  Blind Equalization and Carrier Phase Recovery in a 16-QAM Optical Coherent System , 2009, Journal of Lightwave Technology.

[14]  S. Savory,et al.  Electronic compensation of chromatic dispersion using a digital coherent receiver. , 2007, Optics express.

[15]  P. Andrekson,et al.  Comparison of polarization-switched QPSK and polarization-multiplexed QPSK at 30 Gbit/s. , 2011, Optics express.