| 三种载波抑制归零码光调制格式性能 |
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| 引用本文： | 王现彬,李宁,卢智嘉,杨洁,曹鹤飞.三种载波抑制归零码光调制格式性能[J].红外与激光工程,2014,43(11):3694-3698. |
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| 作者姓名： | 王现彬 李宁 卢智嘉 杨洁 曹鹤飞 |
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| 作者单位： | 1.石家庄学院 电气信息工程系,河北 石家庄 050000; |
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| 基金项目： | 河北省自然科学基金(F2013106079)；河北省科技计划(13220344)；石家庄市科学技术研究与发展指导计划 |
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| 摘 要： | 首先分析了基于载波抑制归零码的光载波抑制归零-开关键控(CSRZ-OOK)、载波抑制归零-差分相移键控(CSRZ-DPSK)和载波抑制归零-差分正交相移键控(CSRZ-DQPSK) 三种光调制格式的时域和频域特性,并数字仿真了其在40 Gbit/s单信道光纤系统中的传输性能.以Q值、眼图和误码率(BER)作为性能评价指标,研究了这三种调制格式对色散(CD)、偏振模色散(PMD)和非线性效应的抑制作用.结果表明:CSRZ-DQPSK相对于CSRZ-OOK、CSRZ-DPSK对色散、偏振模色散和非线性效应有非常好的容忍能力.
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| 关 键 词： | 调制格式 差分正交相移键控 色散 非线性效应 偏振模色散 |
| 收稿时间： | 2014-03-20 |
Properties of three types of carried-suppressed return-to-zero optical modulation formats |
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| Wang Xianbin,Li Ning,Lu Zhijia,Yang Jie,Cao Hefei.Properties of three types of carried-suppressed return-to-zero optical modulation formats[J].Infrared and Laser Engineering,2014,43(11):3694-3698. |
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| Authors: | Wang Xianbin Li Ning Lu Zhijia Yang Jie Cao Hefei |
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| Affiliation: | 1.School of Information Engineering,Shijiazhuang University,Shijiazhuang 050000,China;2.School of Information Engineering,Hebei University of Technology,Tianjin 300401,China |
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| Abstract: | The time and frequency domain characteristics of three types of modulation formats, Carrier-Suppressed Return to Zero-On Off Keying(CSRZ-OOK), Carrier-Suppressed Return to Zero-Differential Phase Shift Keying(CSRZ-DPSK) and Carrier-Suppressed Return to Zero- Differential Quadrature Phase Shift Keying (CSRZ-DQPSK) based on carrier-suppressed return to zero formats, were analyzed firstly and the transmission performance of the three types of modulation formats was simulated in 40 Gbit/s single channel optical fiber transmission system. The tolerance of the three types of modulation formats to chromatic dispersion(CD), polarization mode dispersion(PMD) and nonlinear effect was evaluated by means of Q value, eye diagrams and bit error rate(BER). The results show that CSRZ-DQPSK has very good tolerance to chromatic dispersion, polarization mode dispersion and nonlinear effect compared with CSRZ-OOK and CSRZ-DPSK. |
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| Keywords: | modulation formats differential quadrature phase shift keying chromatic dispersion nonlinear effect polarization mode dispersion |
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