Using semiconductor-optical amplifiers with constant envelope WDM signals

被引:17
|
作者
Ciaramella, Ernesto [1 ]
D'Errico, Antonio [1 ]
Donzella, Valentina [1 ]
机构
[1] Scuola Super Sant Anna, I-56124 Pisa, Italy
关键词
differential phase shift keying (DPSK); cross gain modulation (XGM); cross-phase modulation (XPM); optical fiber communication; polarization-shift keying (POLSK); semiconductor optical amplifiers (SOA);
D O I
10.1109/JQE.2007.914883
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Semiconductor-optical amplifiers (SOAs) could be used in wavelength-division multiplexing (WDM) systems with constant envelope modulation formats. However if chromatic dispersion affects their constant envelope, WDM signals can interact via the SOA carrier density fluctuations, resulting into relevant penalty. We experimentally and theoretically investigate the operating conditions for SOA-based amplification with DPSK and POLSK modulation formats and clarify the role of input power, residual dispersion and modulation format. We also determine that, for a given format, the various detection schemes can result into very different impairments. These results can be used as guidelines for the system design.
引用
收藏
页码:403 / 409
页数:7
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