Abstract

In this paper, the authors derive the moment generating function (MGF) of the decision variable for a practical optical differential quadrature phase shift keying (DQPSK) receiver affected by phase noise and the amplifier spontaneous emission noise. The effect of the different optical filters, Gaussian, Fabry-Pérot (FP), and optical integrator, on the phase noise is examined. Using the saddle point approximation, the authors obtain numerically the bit error rate (BER) for the above system, as a function of the optical-signal-to-noise ratio (OSNR) and the source linewidth. The model is found to agree with previous published simulation results and the Monte Carlo simulations presented in this paper. The authors also calculate the BER floors for DQPSK inflicted by the phase noise and compare its performance with differential phase shift keying (DPSK). Finally, the authors examine the effect of interferometric demodulation on the relative intensity noise (RIN) spectra and the impact on the DQPSK system performance. In particular, the authors examine the influence of system dispersion on the receiver sensitivity.

© 2006 IEEE

Proposal and Performance Evaluation of an Efficient RZ-DQPSK Modulation Scheme in All-Optical OFDM Transmission Systems

Seyed E. Mirnia, Arman Zarei, Siamak D. Emami, Sulaiman W. Harun, Hamzah Arof, Harith Ahmad, and Hossam M. H. Shalaby
J. Opt. Commun. Netw. 5(9) 932-944 (2013)

Chromatic dispersion and PMD mitigation at 10 Gb/s using Viterbi equalization for DPSK and DQPSK modulation formats

Wei Chen, Fred Buchali, Xingwen Yi, William Shieh, Jamie S. Evans, and Rodney S. Tucker
Opt. Express 15(9) 5271-5276 (2007)

Performance evaluation of hybrid DPSK-MPPM techniques in long-haul optical transmission

Abdulaziz E. El-Fiqi, Ahmed E. Morra, Salem F. Hegazy, Hossam M. H. Shalaby, Kazutoshi Kato, and Salah S. A. Obayya
Appl. Opt. 55(21) 5614-5622 (2016)

Generalized data-aided multi-symbol phase estimation for improving receiver sensitivity in direct-detection optical m-ary DPSK

Xiang Liu
Opt. Express 15(6) 2927-2939 (2007)

Accurate BER evaluation for lumped DPSK and OOK systems with PMD and PDL

Zhongxi Zhang, Liang Chen, and Xiaoyi Bao
Opt. Express 15(15) 9418-9433 (2007)