利用偏振调制的FSK/ASK光标记信号性能分析

doi:10.13190/jbupt.201005.117.shiy

北京邮电大学学报 ›› 2010, Vol. 33 ›› Issue (5): 117-120.doi: 10.13190/jbupt.201005.117.shiy

利用偏振调制的FSK/ASK光标记信号性能分析

师严，余重秀，忻向军

光通信与光电子学教育部重点实验室(北京邮电大学)

收稿日期:2010-01-05 修回日期:2010-01-05 出版日期:2010-08-28 发布日期:2010-06-15
通讯作者: 师严 E-mail:shiyanbupt@yahoo.com.cn
基金资助:
国家级.国家自然科学基金项目;国家级.国家高技术研究发展计划项目

The Investigation of Combined Orthogonal FSK/ASK Labeled  Signal Based on Polarization Modulation

Received:2010-01-05 Revised:2010-01-05 Online:2010-08-28 Published:2010-06-15

摘要/Abstract

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125Gbit/s和20Gbit/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4dB和50GHz.

关键词: 光标记交换, 频移键控, 幅移键控, 正交调制, 偏振调制

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 ratio (ER) of ASK payload and the frequency spacing of FSK label have also been studied to obtain the better performance of this OLS system. It is indicated that larger frequency spacing of FSK label will deteriorate the ASK payload, but has little influence on FSK label; larger ER of ASK payload can improve the ASK payload, however, it will bring adverse impact on FSK label. As a result, the optimum ER of ASK payload and the most proper frequency spacing of FSK label are selected to be 4dB and 50GHz, respectively.

Key words: optical label switching, frequency shift keying, amplitude shift keying, orthogonal modulation, polarization modulation

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.

参考文献

[1] Blumenthal D J, Olsson B E, Rossi G, et al. All-optical label swapping networks and technologies[J]. J Lightw Technol, 2000, 18(12): 2058-2075.
[2] 邱昆, 凌云, 张薇, 等. 光分组交换中FP-SOA光信号处理研究[J]. 电子科技大学学报, 2006, 34(4): 632-637. Qiu Kun, Ling Yun, Zhang Wei, et al. Study on optical signal processor by using FP-SOA in optical packet switching[J]. Journal of University of Electronic Science and Technology of China, 2006, 34(4): 632-637.
[3] Hung W, Chan C K, Chen L K, et al. A bit-serial optical packet label-swapping scheme using DPSK encoded labels[J]. IEEE Photon Technol Lett, 2003, 15(11): 1630-1632.
[4] Chi Nan, Zhang Jianfeng, Jeppesen P. All-optical subcarrier labeling based on the carrier suppression of the payload[J]. IEEE Photon Technol Lett, 2003, 15(5): 781-783.
[5] Chi Nan, Carisson B, Zhang Jianfeng, et al. Transmission properties for two-level optically labeled signals with amplitude-shift keying and differential phase-shift keying orthogonal modulation in IP-over-WDM networks[J]. Journal of Optical Networks, 2003, 2(2): 46-53.
[6] Zhang Jianfeng, Chi Nan, Holm-Nielsen P V, et al. An optical FSK transmitter based on an integrated DBF laser-EA modulator and its application in optical labeling[J]. IEEE Photon Technol Lett, 2003, 15(7): 984-986.
[7] Olmos J J V, Monroy I T, Koon A M J. High bit-rate combined FSK/IM modulated optical signal generation by using GCSR tunable laser sources[J]. Opt Expr, 2003, 11(23): 3136-3140.
[8] Kawanishi T, Higuma K, Fujita T, et al. High-speed LiNbO₃ optical FSK modulator[J]. Electron Lett, 2005, 40(11): 691-692.
[9] Pun S S, Chan C K, Chen L K. A novel optical frequency shift keying transmitter based on polarization modulation[J]. IEEE Photon Technol Lett, 2005, 17(7): 1528-1530.

利用偏振调制的FSK/ASK光标记信号性能分析

The Investigation of Combined Orthogonal FSK/ASK Labeled  Signal Based on Polarization Modulation

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