激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2015年
1期
9-11
,共3页
科斯塔斯环%相位误差%激光器线宽%掺铒光纤放大器的个数%功率分光比
科斯塔斯環%相位誤差%激光器線寬%摻鉺光纖放大器的箇數%功率分光比
과사탑사배%상위오차%격광기선관%참이광섬방대기적개수%공솔분광비
Costas%phase error%laser line-width%the number of EDFA%power splitting ratio
针对相干光通信系统中的零差探测系统中的科斯塔斯环对整个系统的相位误差影响问题进行了深入的理论研究。论文分析了接收机的灵敏度、功率分光比、掺铒光纤放大器的个数对激光器线宽的影响。在设定条件下，利用仿真得到了在比特率和误码率一定的条件下，激光器线宽与接收机的灵敏度、功率分光比、掺铒光纤放大器的个数之间的关系，对系统中激光器线宽控制有一定的参考作用。
針對相榦光通信繫統中的零差探測繫統中的科斯塔斯環對整箇繫統的相位誤差影響問題進行瞭深入的理論研究。論文分析瞭接收機的靈敏度、功率分光比、摻鉺光纖放大器的箇數對激光器線寬的影響。在設定條件下，利用倣真得到瞭在比特率和誤碼率一定的條件下，激光器線寬與接收機的靈敏度、功率分光比、摻鉺光纖放大器的箇數之間的關繫，對繫統中激光器線寬控製有一定的參攷作用。
침대상간광통신계통중적령차탐측계통중적과사탑사배대정개계통적상위오차영향문제진행료심입적이론연구。논문분석료접수궤적령민도、공솔분광비、참이광섬방대기적개수대격광기선관적영향。재설정조건하，이용방진득도료재비특솔화오마솔일정적조건하，격광기선관여접수궤적령민도、공솔분광비、참이광섬방대기적개수지간적관계，대계통중격광기선관공제유일정적삼고작용。
In coherent optical communication system,the effect of Costas loop in homodyne detection system on phase errors of the entire system was theoretically studied.The impact of receiver sensitivity,power splitting ratio,the num-ber of erbium-doped fiber amplifiers on laser line-width was analyzed.When the bit rate and bit error rate reached certain conditions,the relationships between laser line-width and the receiver sensitivity,the power split ratio,the number of the erbium-doped fiber amplifier were obtained through simulation,which provide certain reference for laser line-width control.
