| 入射偏振对有线电视光发射机受激布面渊散射抑制性能的影响 |
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| 引用本文： | 杨建良,涂涛,查开德.入射偏振对有线电视光发射机受激布面渊散射抑制性能的影响[J].光学学报,2001,21(1):8-31. |
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| 作者姓名： | 杨建良 涂涛 查开德 |
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| 作者单位： | 1. 清华大学电子工程系， 北京 100084 湘潭大学电子工程系， 湘潭 411105
2. 清华大学电子工程系， 北京 100084 |
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| 基金项目： | 中国博士后科研基金，华为科技基金资助项目 |
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| 摘 要： | 受激布里渊散射 (SBS)的抑制性能是光纤调幅有线电视外调制发射机的关键指标之一。从理论上分析了入射偏振分别为TE与TM模时 ,对发射机受激布里渊散射抑制性能的影响。分析计算显示 :入射光偏振态模式为TE模最佳。还对入射偏振态偏离TE模的情形进行了分析 ,表明为保证发射机对受激布里渊散射抑制性能 ,入射光偏离TE模的角度应小于 10°。
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| 关 键 词： | 光纤调同有线电视 外调制发射机 受激布里渊散射 偏振 入射 |
Influence of Incident Polarization State on Performance for SBS Suppression of the CATV Transmitter |
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| Yang Jianliang , Tu Tao Zha Kaide.Influence of Incident Polarization State on Performance for SBS Suppression of the CATV Transmitter[J].Acta Optica Sinica,2001,21(1):8-31. |
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| Authors: | Yang Jianliang Tu Tao Zha Kaide |
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| Institution: | Yang Jianliang 1),2) Tu Tao 1) Zha Kaide 1) 1),Department of Electronic Engineering,Tsinghua University,Beijing 100084 2),Department of Electronic Engineering,Xiangtan University,Xiangtan 411105 |
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| Abstract: | The performance of Stimulated Brillouin Scattering (SBS) suppression is one of the key parameters in optical fiber AM CATV (amplitude modulated cable television) externally modulated transmitters. The influence of the incident polarization state with TE mode and TM mode on the performance for SBS suppression in optical fiber AM CATV externally modulated transmitters is analyzed theoretically. The analysis and calculation have shown that the TE mode is the best mode for performance of SBS suppression. The influence of the incident polarization state deviating from TE mode is also analyzed and calculated. And it is shown that the deviation angle from the TE mode should be less than 10 degrees so as to the performance for SBS suppression will not be degraded. |
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| Keywords: | optical fiber AM CATV externally modulated transmitter stimulated Brillouin scattering polarization |
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