Electrically band-limited CSRZ-DPSK signal with a simple transmitter configuration and reduced linear crosstalk in high-spectral efficiency DWDM systems

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In this letter, we propose a novel transmitter configuration for generating electrically band-limited (EB) carrier-suppressed return-to-zero (CSRZ) differential phase-shift-keyed (DPSK) signals, which requires only a single-stage Macb-Zehnder modulator in conjunction with an electrical band-limiting low-pass filter and electrical mixer. The proposed scheme is cost-effective due to the simple configuration. In addition, when applied to dense wavelength-division-multiplexing systems with high spectral efficiency, the EB-CSRZ-DPSK signal exhibits reduced linear crosstalk, increased dispersion tolerance, and no additional nonlinearity penalty in comparison to the conventional CSRZ-DPSK signal.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2004-09
Language
English
Article Type
Article
Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.16, pp.2135 - 2137

ISSN
1041-1135
URI
http://hdl.handle.net/10203/83497
Appears in Collection
EE-Journal Papers(저널논문)
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