| AM-VSB光纤1 310nm波段750MHz CATV传输系统 |
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| 引用本文： | 诸波,陆毓胜.AM-VSB光纤1 310nm波段750MHz CATV传输系统[J].南京邮电大学学报(自然科学版),2000,20(2):83-85. |
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| 作者姓名： | 诸波 陆毓胜 |
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| 作者单位： | 南京邮电学院光信息技术系,江苏南京,210003 |
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| 摘 要： | 对AM-VSB光纤750MHz系统的非线性补偿技术以及DFB激光器的APC和ATC电路进行了讨论和设计。给出了研制的DFB先发射机及接收机的特性及实测结果。对光发射机的关键技术即预失真校正技术进行了论述，给出了研制的预失真电路的实测结果。在60路PAL制信号同时传输条件下，CSO改善2-4dB，CTB改善5-7dBc。
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| 关 键 词： | 激光器预失真校正 自动光功率控制 自动温度控制 分布反馈多量子阱激光器 |
| 文章编号： | 1000-1972(2000)02-0083-03 |
| 修稿时间： | 1999-10-15 |
AM-VSB Optical Fibre CATV Transmission System at Wavelength of 1 310 nm and with Transmission Bandwidth of 750 MHz |
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| ZHU Bo,LU Yu-sheng.AM-VSB Optical Fibre CATV Transmission System at Wavelength of 1 310 nm and with Transmission Bandwidth of 750 MHz[J].Journal of Nanjing University of Posts and Telecommunications,2000,20(2):83-85. |
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| Authors: | ZHU Bo LU Yu-sheng |
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| Institution: | ZHU Bo
,LU Yu-sheng
;(Department of Optical Information Technology, Nanjing University of posts and Telecommunications Nanjing 210003,China) |
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| Abstract: | is devoted to nonlinearity and its compensation in AM-VSB fihre CATV transmission system with transmission bandwidth of 750 MHz. Automatic optical power control circuit and autonmtic temperature control circuit in transmitter are discussed and designed. The results of measurements of optical transmitter and optical receiver developed by us are presented. The key technology in transmitter, the predistortion technology, is discnssed. The results of measurements of predistortion circuit developed by us are given. The improvement of CSO is 2 - 4 dB and that of CTB is 5 - 7 dB in 60 channels. |
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| Keywords: | Correcting distortion by predistortion Automatic optical power control Automatic temperature control Multiquantum-well distributed-feedhack laser |
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