In this study, the gain clamping performance of Hafnia-bismuth-erbium co-doped fibre amplifier (HB-EDFA) using a lasing controlled structure with fibre Bragg grating (FBG) pair is presented. First, the gain and noise figure (NF) characteristics of a bidirectionally pumped HB-EDFA with very short lengths of heavily doped fibre are presented regarding its critical design parameters such as HB-EDF length, pump power, input signal power and signal wavelength. Then, the gain clamping performance of a bidirectionally pumped HB-EDFA having a C-band FBG pair with Bragg wavelengths of 1534 and 1542 nm is experimentally analysed. A good gain clamping capability was obtained using the proposed bidirectionally HB-EDFA design which has resulted in a dynamic signal input power range of 25 dB at 16 dB signal gain for 1.6 m HB-EDF length, and a wider dynamic signal input power range of 30 dB at 10 dB signal gain for 1.1 m HB-EDF length.

在这项研究中，提出了使用带有光纤布拉格光栅（FBG）对的激光控制结构的Ha-铋-co共掺杂光纤放大器（HB-EDFA）的增益钳位性能。首先，介绍了具有很短长度的重掺杂光纤的双向泵浦HB-EDFA的增益和噪声系数（NF）特性，涉及其关键设计参数，例如HB-EDF长度，泵浦功率，输入信号功率和信号波长。然后，通过实验分析了具有C波段FBG对且布拉格波长为1534和1542 nm的双向泵浦HB-EDFA的增益钳位性能。使用建议的双向HB-EDFA设计获得了良好的增益钳位能力，在1.6 m HB-EDF长度下，在16 dB信号增益下，动态信号输入功率范围为25 dB，