| 宽带碲基掺铒光纤放大器多信道增益竞争的仿真分析 |
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| 引用本文： | 周亚训,周淋,陈芬,徐铁峰,聂秋华.宽带碲基掺铒光纤放大器多信道增益竞争的仿真分析[J].光学技术,2006,32(2):274-276. |
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| 作者姓名： | 周亚训 周淋 陈芬 徐铁峰 聂秋华 |
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| 作者单位： | 宁波大学,信息科学与工程学院,浙江,宁波,315211 |
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| 基金项目： | 浙江省自然科学基金
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浙江省教育厅资助项目 |
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| 摘 要： | 对新型宽带碲基掺铒光纤放大器(EDTFA)多信道间的增益演变关系进行了理论仿真。仿真结果表明:EDTFA多信道间的增益存在着一个竞争过程,竞争的强弱取决于碲基掺铒光纤内的能级粒子数分布;当上能级粒子数处于反转分布态时,具有较大的发射截面与吸收截面差值的波长信道拥有相对较大的竞争优势,可获得相对较高的信号增益;当上能级粒子数处于未反转分布态时,具有较大的发射截面与吸收截面比值的波长信道拥有相对较大的增益竞争优势。
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| 关 键 词： | 碲基掺铒光纤放大器 增益竞争 粒子数分布 |
| 文章编号： | 1002-1582(2006)02-0274-03 |
| 收稿时间： | 2004/12/20 |
| 修稿时间： | 2004年12月20 |
Simulation analysis on gain competition among multi-channels of broad-band tellurite-based erbium-doped fiber amplifier |
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| ZHOU Ya-xun,ZHOU Lin,CHEN Fen,XU Tie-feng,NIE Qiu-hua.Simulation analysis on gain competition among multi-channels of broad-band tellurite-based erbium-doped fiber amplifier[J].Optical Technique,2006,32(2):274-276. |
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| Authors: | ZHOU Ya-xun ZHOU Lin CHEN Fen XU Tie-feng NIE Qiu-hua |
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| Abstract: | The simulation analyses on gain relations among multi-channels of novel broad-band erbium-doped tellurite-based fiber amplifier(EDTFA) are presented theoretically.The simulation results show that there is a gain competitive process among multi-channels which relied on the energy state population distribution of EDTFA.When the upper state population is reversed,the channel with greater difference of emission and absorption cross-section has bigger signal gain due to its competitive advantage.When the upper state population is not reversed,the channel with greater ratio of emission and absorption cross-section has greater competitive advantage. |
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| Keywords: | erbium-doped tellurite-based fiber amplifier(EDTFA) gain competition population distribution |
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