| 利用偏振调制的FSK/ASK光标记信号性能分析 |
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| 引用本文： | 师严,余重秀,忻向军.利用偏振调制的FSK/ASK光标记信号性能分析[J].北京邮电大学学报,2010,33(5):117-120. |
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| 作者姓名： | 师严 余重秀 忻向军 |
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| 作者单位： | 光通信与光电子学教育部重点实验室(北京邮电大学),北京,100876;光通信与光电子学教育部重点实验室(北京邮电大学),北京,100876;光通信与光电子学教育部重点实验室(北京邮电大学),北京,100876 |
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| 基金项目： | 国家自然科学基金项目(60677004); 国家高技术研究发展计划项目(2007AA01Z260,2009AA01Z220); 教育部科学技术研究重点项目(107011) |
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| 摘 要： | 为了实现光标记交换（OLS）系统中频移键控（FSK）信号速率透明以及频率间隔可调，提出了一种基于偏振调制的频移键控（FSK）/幅移键控（ASK）联合正交调制OLS系统，其中FSK标记信号与ASK净荷信号的速率分别为125Gbit/s和20Gbit/s. 通过仿真对该信号传输后的误码率（BER）特性及ASK净荷的消光比(ER)、FSK标记的频率间隔对系统性能的影响进行了分析. 分析结果表明，增大FSK频率间隔对FSK信号的影响较小，但会恶化ASK信号；而增大ASK 净荷的ER可改善ASK信号，但恶化了FSK信号. 因此，最终选定ASK净荷ER和FSK标记频率间隔的最佳值分别为4dB和50GHz.
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| 关 键 词： | 光标记交换 频移键控 幅移键控 正交调制 偏振调制 |
| 收稿时间： | 2010-01-05 |
The Investigation of Combined Orthogonal FSK/ASK Labeled Signal Based on Polarization Modulation |
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| SHI Yan,YU Chong-xiu,XIN Xiang-jun.The Investigation of Combined Orthogonal FSK/ASK Labeled Signal Based on Polarization Modulation[J].Journal of Beijing University of Posts and Telecommunications,2010,33(5):117-120. |
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| Authors: | SHI Yan YU Chong-xiu XIN Xiang-jun |
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| Affiliation: | SHI Yan,YU Chong-xiu,XIN Xiang-jun ( Key Laboratory of Information Photonics , Optical Communications( Beijing University of Posts , Telecommunications),Ministry of Education,Beijing 100876,China) |
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| Abstract: | In order to realize the transparent bit rate and the tunable frequency of frequency shift keying (FSK) in the optical label switching (OLS) system,a new method is proposed and verified by simulation with 1. 25 Gbit/s FSK label which is generated by polarization modulation and 20 Gbit/s amplitude shift keying (ASK) payload. The bit error rate (BER) performance of combined orthogonal FSK /ASK signal is also researched by simulation in the case of back-to-back and the fiber transmission. Besides,the extinction... |
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| Keywords: | optical label switching frequency shift keying amplitude shift keying orthogonal modulation polarization modulation |
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