摘要
尝试用数字光纤通信用激光器代替模拟光纤通信用激光器,通过温度控制、预失真补偿电路等线性补偿方法,以及在输入端采用AGC、固定衰减器等动态范围补偿的方法,使数字光纤通信用激光器在线性度以及动态范围两方面得到很大的提高,达到模拟光纤通信用激光器的水平,可以应用于短波、超短波以及微波波段的模拟光纤通信中。
A method that uses laser for digital optical communications to replace that for analog optical communications is tried. The linearity and dynamic range of the lasers for digital optical communications can be significantly enhanced by using linear compensation methods such as temperature control and pre-distortlon compensation circuit, and dynamic range compensation methods such as using AGC at input end. fixed attenuator. In this case the lasers for digital optical communications can arrive the same level with that of the lasers for analog optical communications, so that they may be used in the field of analog optical communications in the bands of short wave, super short wave, and microwave.
出处
《光纤与电缆及其应用技术》
2008年第1期38-40,共3页
Optical Fiber & Electric Cable and Their Applications
关键词
数字激光器
模拟激光器
预失真线性补偿
动态范围
digital laser
analog laser
predistortion linearity compensation
dynamic range
