一种新型前馈自动增益控制光接收机的研究

自动增益控制模拟光接收机广泛应用于光纤有线电视、光纤直播卫星电视、无线通讯及雷达等射频微波信号光传输,是实现大动态范围光载波信号高质量接收必不可少的一项技术.我们采用一种入射光功率电平检测与处理的新方法,对模拟光接收机的增益进行控制,将接收机输出电平控制在要求的范围内,实现了一种新型的无射频反馈电路的自动增益控制光接收机.

Research of a novel feedforward AGC optical receiver

Indispensable for high quality optical carrier signal reception in a large dynamic range,AGC analog optical receivers are widely used in the optical transmission of radio and microwave signals,such as fiber CATV,direct broadcast satellite TV,wireless communication and radar.By using a new optical input power level detection and signal treatment method to control the gain of the receiver and keep its output level within the required range,a novel feedforward AGC optical receiver without radio frequency feedback circuits is realized.