Numerical investigation of differential phase noise and its power penalty for optical amplification using semiconductor optical amplifiers in DPSK applications

Wei Hong; Dexiu Huang; Xinliang Zhang; Guangxi Zhu

doi:10.1117/12.745703

19 November 2007 Numerical investigation of differential phase noise and its power penalty for optical amplification using semiconductor optical amplifiers in DPSK applications

Wei Hong, Dexiu Huang, Xinliang Zhang, Guangxi Zhu

Author Affiliations +

Proceedings Volume 6782, Optoelectronic Materials and Devices II; 67823C (2007) https://doi.org/10.1117/12.745703
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

A thorough simulation and evaluation of phase noise for optical amplification using semiconductor optical amplifier (SOA) is very important for predicting its performance in differential phase shift keyed (DPSK) applications. In this paper, standard deviation and probability distribution of differential phase noise are obtained from the statistics of simulated differential phase noise. By using a full-wave model of SOA, the noise performance in the entire operation range can be investigated. It is shown that nonlinear phase noise substantially contributes to the total phase noise in case of a noisy signal amplified by a saturated SOA and the nonlinear contribution is larger with shorter SOA carrier lifetime. Power penalty due to differential phase noise is evaluated using a semi-analytical probability density function (PDF) of receiver noise. Obvious increase of power penalty at high signal input powers can be found for low input OSNR, which is due to both the large nonlinear differential phase noise and the dependence of BER vs. receiving power curvature on differential phase noise standard deviation.

Citation Download Citation

Wei Hong, Dexiu Huang, Xinliang Zhang, and Guangxi Zhu "Numerical investigation of differential phase noise and its power penalty for optical amplification using semiconductor optical amplifiers in DPSK applications", Proc. SPIE 6782, Optoelectronic Materials and Devices II, 67823C (19 November 2007); https://doi.org/10.1117/12.745703

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KEYWORDS

Interference (communication)

Phase shift keying

Eye

Nonlinear optics

Semiconductor optical amplifiers

Receivers

Optical amplifiers

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