光通信技术
光通信技術
광통신기술
OPTICAL COMMUNICATION TECHNOLOGY
2009年
12期
11-13
,共3页
光纤通信%双包层铒镱共掺光纤放大器%速率方程和光传输方程%隔离器
光纖通信%雙包層鉺鐿共摻光纖放大器%速率方程和光傳輸方程%隔離器
광섬통신%쌍포층이의공참광섬방대기%속솔방정화광전수방정%격리기
fiber communication%double-clad Er~(3+)/Yb~(3+) co-doped fiber amplifier%rate equation and light propagation equation%isolator
基于速率方程和光传输方程,对带光隔离器的级联双包层铒镱共掺光纤放大器(EYDFA)进行了研究.结果发现小信号条件下与单级结构相比,在三种泵浦方式中,前向泵浦级联结构的增益增加最多达到4.4dB,后向泵浦的增益最大,前向和双向泵浦的噪声系数接近理论极限3dB,前向泵浦的最佳光纤长度增大近1倍.
基于速率方程和光傳輸方程,對帶光隔離器的級聯雙包層鉺鐿共摻光纖放大器(EYDFA)進行瞭研究.結果髮現小信號條件下與單級結構相比,在三種泵浦方式中,前嚮泵浦級聯結構的增益增加最多達到4.4dB,後嚮泵浦的增益最大,前嚮和雙嚮泵浦的譟聲繫數接近理論極限3dB,前嚮泵浦的最佳光纖長度增大近1倍.
기우속솔방정화광전수방정,대대광격리기적급련쌍포층이의공참광섬방대기(EYDFA)진행료연구.결과발현소신호조건하여단급결구상비,재삼충빙포방식중,전향빙포급련결구적증익증가최다체도4.4dB,후향빙포적증익최대,전향화쌍향빙포적조성계수접근이론겁한3dB,전향빙포적최가광섬장도증대근1배.
The Characteristics of two-stage double-clad Er~(3+)/Yb~(3+) co-doped fiber amplifier (EYDFA) with isolator are analyzed based on the rate equation and light propagation equation. The results show that the small signal gain can be increased 4.4dB with forward pumped scheme, the gain of the backward pumped scheme is the biggest, and the noise figure is nearly to quantum level with forward and biderectional pumped scheme,and the forward pumped optimum fiber length has nearly doubled compared with single stage scheme.
