Transmission performance of 10-Gb/s DPSK WDM signals due to phase-error and four-wave mixing in SOAs
- Authors
- Hur, Sub; Lee, Jaehoon; Jeong, Jichai
- Issue Date
- 1-Mar-2009
- Publisher
- ELSEVIER
- Keywords
- DPSK; SOA; Four-wave mixing; Optical communication; Optical modulation
- Citation
- OPTICS COMMUNICATIONS, v.282, no.5, pp.824 - 829
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS COMMUNICATIONS
- Volume
- 282
- Number
- 5
- Start Page
- 824
- End Page
- 829
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120448
- DOI
- 10.1016/j.optcom.2008.11.004
- ISSN
- 0030-4018
- Abstract
- We present a complete dynamic model of semiconductor optical amplifiers (SOAs) including the inter-channel four-wave mixing (FWM). The model has been implemented using the time-dependent transfer matrix method (TMM) and applying the discretization scheme in both the spatial and spectral domains. In SOA-based wavelength division multiplexing transmission systems using 10-Gb/s differential phase shift keyed (DPSK) signals, the system performance due to the SOA-induced phase-error and the FWM effect has been analyzed. By the injection of a reservoir channel into SOAs, the transmission performance of non-return-to-zero (NRZ) DPSK signals can be improved through the phase-error reduction. Both the NRZ-DPSK and return-to-zero (RZ) DPSK signals are found to be suffered from the FWM-induced crosstalk. The overall nonlinear tolerance of RZ-DPSK is shown to be better than that of NRZ-DPSK. (C) 2008 Elsevier B.V. All rights reserved.
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Collections - Graduate School > Department of Computer Science and Engineering > 1. Journal Articles
- Graduate School > Department of Brain and Cognitive Engineering > 1. Journal Articles
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