| 级联光纤放大器多通道传输系统的性能 |
| |
| 引用本文： | 秦宗伟,吴志坚.级联光纤放大器多通道传输系统的性能[J].南京邮电大学学报(自然科学版),1994(2). |
| |
| 作者姓名： | 秦宗伟 吴志坚 |
| |
| 作者单位： | 南京邮电学院光纤通信研究所 |
| |
| 摘 要： | 研究了光纤放大器噪声和光纤四波混频（ＦＷＭ）对级联光纤放大器多通道传输系统性能的影响。对传输速率为１Ｇｂ／ｓ和信道间隔为１０ＧＨｚ的２０路ＦＳＫ直接检测和外差检测的系统，当信号在常规光纤中传输１０００ｋｍ后，中间信道的最小功率代价分别为０．９和０．３８ｄＢ；对于色散位移光纤，最小功率代价分别为１．７５和０．７ｄＢ。
|
| 关 键 词： | 多通道传输系统，功率代价，掺铒光纤放大器，噪声，四波混频 |
Performance of Multichannel Transmission Systems With Cascaded Optical Amplifiers |
| |
| Qin Zongwei ,Wu Zhijian.Performance of Multichannel Transmission Systems With Cascaded Optical Amplifiers[J].Journal of Nanjing University of Posts and Telecommunications,1994(2). |
| |
| Authors: | Qin Zongwei Wu Zhijian |
| |
| Abstract: | The effect of optical amplifier noise and the four wave mixing in optical fiber on the performance of the multichannel FSK direct and heterodyne detection transmission system with cascaded optical amplifiers is discussed. The performance of a 1 Gb/s and 20 channels system is compared for conventional and dispersion shifted fibers. With 10 GHz channel separation ,the lowest power penalty of central channel is 1. 75 dB for heterodyne detection and 0. 77 dB for direct detection after 1 000 km in dispersion shifted fiber, but for conventional fibers, it is 0. 9 dB of heterodyne detection and 0. 38 dB of direct detection. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
