19 December 2017 Analytical evaluation of the combined influence of polarization mode dispersion and group velocity dispersion on the bit error rate performance of optical homodyne quadrature phase-shift keying systems
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Abstract
A theoretical approach is presented to evaluate the bit error rate (BER) performance of an optical fiber transmission system with quadrature phase-shift keying (QPSK) modulation under the combined influence of polarization mode dispersion (PMD) and group velocity dispersion (GVD) in a single-mode fiber (SMF). The analysis is carried out without and with polarization division multiplexed (PDM) transmission considering a coherent homodyne receiver. The probability density function (pdf) of the random phase fluctuations due to PMD and GVD at the output of the receiver is determined analytically, considering the pdf of differential group delay (DGD) to be Maxwellian distribution and that of GVD to be Gaussian approximation. The exact pdf of the phase fluctuation due to PMD and GVD is also evaluated from its moments using a Monte Carlo simulation technique. Average BER is evaluated by averaging the conditional BER over the pdf of the random phase fluctuation. The BER performance results are evaluated for different system parameters. It is found that PDM-QPSK coherent homodyne system suffers more power penalty than the homodyne QPSK system without PDM. A PDM-QPSK system suffers a penalty of 4.3 dB whereas power penalty of QPSK system is 3.0 dB at a BER of 10 9 for DGD of 0.8 T b and GVD of 1700    ps / nm . Analytical results are compared with the experimental results reported earlier and found to have good conformity.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Kazi Abu Taher, Satya Prasad Majumder, "Analytical evaluation of the combined influence of polarization mode dispersion and group velocity dispersion on the bit error rate performance of optical homodyne quadrature phase-shift keying systems," Optical Engineering 56(12), 126108 (19 December 2017). https://doi.org/10.1117/1.OE.56.12.126108 . Submission: Received: 7 August 2017; Accepted: 30 November 2017
Received: 7 August 2017; Accepted: 30 November 2017; Published: 19 December 2017
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