| 光放大器的噪声分析及光前放接收机的灵敏度计算 |
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| 引用本文： | 姚建国,杨淑雯.光放大器的噪声分析及光前放接收机的灵敏度计算[J].光学学报,1993,13(7):11-618. |
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| 作者姓名： | 姚建国 杨淑雯 |
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| 作者单位： | Dept.ESE University of Essex，深圳大学新技术研究中心 U.K，深圳518060 |
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| 摘 要： | 本文介绍了光放大器的噪声分析以及作为光前置放大器在强度调制-直接检测(IMDD)光纤传输系统中的应用.文中着重讨论了各种系统参数对接收机灵敏度的影响,并推出了一个通用的灵敏度计算公式.对一个2.5Gb/s实验光纤传输系统的测试表明,理论计算的灵敏度曲线与实测值非常接近.利用光纤前置放大器及IMDD传输方式,实验系统的灵敏度由原来的-26.5dBm提高到-39.5dBm.
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| 关 键 词： | 光通信 激光放大器 噪声 灵敏度 |
| 收稿时间： | 1992/3/2 |
Noise analysis and sensitivity calculation of optical amplifier and optically pre-amplified receiver |
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| YAO Jianguo.Noise analysis and sensitivity calculation of optical amplifier and optically pre-amplified receiver[J].Acta Optica Sinica,1993,13(7):11-618. |
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| Authors: | YAO Jianguo |
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| Abstract: | We present a practical model for optical amplifier noise amplifier noise analysis and its application in conventional intensity modulation- direct detection (IMDD) optical transmission systems. In particular, a general sensitivity calculation formulae for optically pre-amplified receiver is derived and the impact of different system parameters on BER performance is discussed. Measurements on a experimental system with a 2. 5 Gb/s optically pre-amplified receiver show the good coincidence between the theoretical calculation and the experimental results. By using an optical pre-amplifier, the receiver sensitivity of the experimental system improved from-26. 5 dBm to-39. 5 dBm. |
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| Keywords: | optical communication optical amflifier |
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