【摘要】 本文简述了前置掺铒光纤放大器的结构与应用，重点分析了影响接收机灵敏度的主要因素、前置光纤放大器的优化设计方法以及我们的实验与技术指标。更多还原

【Abstract】 We introduced the structure and application of erbium doped fibre pre amplifier,and analyzed the key factors that affect the sensitivity of the receiver with an optical pre amplifier.We also introduced the procedure for optical pre amplifier design and experimental results.更多还原