標題: Optimizing the Extinction Ratio and Error Bit Penalty of the On-Off-Keying Pulse Data With Gain-Constrictive SOA
作者: Lin, Gong-Ru
Pan, Ci-Ling
Yu, Kun-Chieh
光電工程學系
Department of Photonics
關鍵字: All-optical networks;fiber-optic communication;pulse shaping;semiconductor optical amplifiers (SOAs)
公開日期: 1-三月-2009
摘要: On/off extinction ratio and receiving power penalties of a 10-Gb/s all-optical on-off-keying pulse data generated from a multiwavelength dark-optical-comb injected semiconductor optical amplifier (SOA) is analyzed. Such an SOA with a temporally constricted gain window is employed to offer an on-off-keying (OOK)-generated data stream with on/off extinction ratio of 17 dB and bit error rate (BER) of 10(-13) at a receiving optical power of 18 dBm. With an input nonreturn-to-zero (NRZ) power as low as 15 dBm and an injected dark-optical-comb power of 16.5 dBm, the generated OOK pulse data reaches a BER 10(-13) at receiving power as low as -18.5 dBm. The OOK operation in the SOA also exhibits a decision-gate function with improved negative power penalty of 1.5 dB as compared with the back-to-back NRZ transmission condition. The injection via a multiwavelength dark-optical-comb source further benefits from a lower noise level as compared with single-wavelength laser or broadband spontaneous emission source. Such a system exhibits a tolerance for detuning timing of >65% period with power penalties on the on/off extinction ratio and the receiving power of 3 and 1 dB, respectively. Even after 25-km propagation in a single-mode fiber spool, there is only a power penalty of 0.5 dB at a BER of 10(-13) obtained for the generated pulse data stream.
URI: http://dx.doi.org/10.1109/JQE.2009.2013087
http://hdl.handle.net/11536/25117
ISSN: 0018-9197
DOI: 10.1109/JQE.2009.2013087
期刊: IEEE JOURNAL OF QUANTUM ELECTRONICS
Volume: 45
Issue: 3
起始頁: 264
結束頁: 272
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