摘要
采用光纤光栅和增益平衡器等光无源器件 ,在常规掺铒光纤放大器 ( EDFA)内部引起光反馈和滤波整形机制 ,研制成功多信道动态增益均衡 EDFA,锁定工作波长带宽 17nm( 1544～1561nm) ,在输入功率 - 2 0～ - 5d Bm内增益恒定为 2 3d B,噪声系数小于 5d B,输出功率 18d Bm,并进行了 80 0 km× 8× 2 .5Gb/ s长距离 DWDM信号高速传输的实验研究 ,在信道数改变的动态运行情况下 ,系统误码率达 10 -10 。
By using optical passive devices such as fiber Bragg grating and gain equilizer optical feedback and filtering reform are introduced into conventional EDFA, thereby successively building up multi channel dynamically gain equalized EDFA. Its gain bandwidth is 17nm (1544～1561nm). The gain for -20～-5dBm of input power range is consistent at 23dB. The noise figure is less than 5dB and the output power is 18dBm. Also, the dynamic gain equalized transmission over a 800km×8×2.5Gb/s DWDM system is demonstrated using this kind of EDFAs. When the channel number changes, BER of the equalization transmission system reaches 10 -10 .
出处
《光纤与电缆及其应用技术》
2001年第4期22-24,共3页
Optical Fiber & Electric Cable and Their Applications
