Title

雙包層光纖放大器小信號時放大的自發輻射特性研究

Translated Titles

Amplified Spontaneous Emission Behavior under Small Signal Amplification in a Er(superscript 3+)/Yb(subscript 3+) Co-doped Double-clad Fiber Amplifier

Authors

占生寶(Sheng-Bao Zhan);趙尚弘(Shang-Hong Zhao);董淑福(Shu-Fu Dong);馬志強(Zhi-Qiang Ma);石磊(Lei Shi)

Key Words

Er(上標 3+)/Yb(上標 3+)共摻 ; 雙包層光纖放大器 ; 正向泵浦 ; 反向泵浦 ; 放大的自發輻射ASE ; Er(superscript 3+)/Yb(subscript 3+) co-doped ; double-clad fiber amplifier ; forward pumping ; backward pumping ; amplified spontaneous emission ASE

PublicationName

光電子·激光

Volume or Term/Year and Month of Publication

16卷8期(2005 / 08 / 15)

Page #

930 - 934

Content Language

簡體中文

Chinese Abstract

基於速率方程,針對不同的泵浦方式,對雙包層Er(上標 3+)/Yb(上標 3+)共摻光纖放大器小信號放大時放大的自發輻射(ASE)特性進行了全面研究。研究結果表明:反向泵浦時,ASE+輸出功率大於ASE-輸出功率,各波長分量對ASE+輸出功率的貢獻大於該波長分量對ASE-輸出功率的貢獻;增加纖芯數值孔徑,無論正向泵浦還是反向泵浦,ASE輸出功率都單調減小;當包層對芯徑面積之比小於某一特定值時,對於反向泵浦,ASE+輸出功率大於ASE-輸出功率。這些特點顯示了小信號放大時ASE與大信號放大時ASE所存在的差異。

English Abstract

Based on rate-equation, amplified spontaneous emission (ASE) behavior in the Er(superscript 3+)/Yb(subscript 3+) co-doped double-clad fiber amplifiers under small signal amplification and different pump configuration is studied completely. This result shows that the ASE behavior under small signal amplification is different from that under large signal amplification. When backward pumping configuration is employed, ASE + output power is larger than that of ASE-output power, and the contribution of each wavelength to ASE + output power is larger than that of the wavelength to ASE-as well. Whether forward or backward pumping configuration is employed, ASE output powers decrease gradually with the increasing of core NA. When the ratio of cladding to core area is less than a specific value, the output power of ASE+ is larger than that of ASE-for backward pumping.

Topic Category 基礎與應用科學 > 物理
工程學 > 電機工程