1.广东工业大学物理与光电工程学院,广东广州 510006
2.广东工业大学信息工程学院,广东广州 510006
3.先进光子技术研究院,广东广州 510006
[ "张心怡 女,1998年12月出生于山东省威海市.2021年考入广东工业大学物理与光电工程学院.现为广东工业大学硕士研究生.主要研究方向为少模掺铒光纤放大器的增益特性优化.E-mail: 2112115137@mail2.gdut.edu.cn" ]
[ "方翼鸿 男,1995年11月出生于广东省揭阳市.2020年毕业于广东工业大学物理与光电工程学院.现为广东工业大学信息工程学院在读博士研究生.主要研究方向为少模掺铒光纤放大器.E-mail: nymph@uestc.edu.cn" ]
[ "黄锡恒 男,1998年7月出生于广东省深圳市.2021年考入广东工业大学信息工程学院.现为广东工业大学硕士研究生.主要研究方向为少模掺铒光纤放大器.E-mail: 2112103110@mail2.gdut.edu.cn" ]
[ "曾 研 男,1997年1月出生于广东省梅州市.2020年毕业于广东工业大学电子信息工程专业.现为广东工业大学在读博士研究生.主要研究方向为少模光纤放大器与激光器.E-mail: nymph@uestc.edu.cn" ]
[ "秦玉文 男.广东工业大学百人特聘教授,先进光子技术研究院院长.目前的科研工作主要集中于光纤通信、光纤传感和光学信息处理等方面.E-mail: qinyw@gdut.edu.cn" ]
[ "许 鸥 女.现为广东工业大学信息工程学院副教授.主要研究方向为光纤通信及传感应用、光纤光栅基器件等.E-mail: xuou@gdut.edu.cn" ]
[ "李建平 男.现为广东工业大学“百人计划”特聘教授.主要研究方向为高速光纤通信.E-mail: jianping@gdut.edu.cn" ]
收稿:2023-01-30,
修回:2023-09-05,
纸质出版:2024-06-25
移动端阅览
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ZHANG Xin-yi, FANG Yi-hong, HUANG Xi-heng, et al. Experimental Comparative Study on Gain and Noise Characteristics of All-Fiber Few-Mode Amplifier Under Different Pumping Methods[J]. Acta Electronica Sinica, 2024, 52(06): 2074-2082.
张心怡, 方翼鸿, 黄锡恒, 等. 基于不同泵浦方案的全光纤少模放大器放大特性对比研究[J]. 电子学报, 2024, 52(06): 2074-2082. DOI:10.12263/DZXB.20230078
ZHANG Xin-yi, FANG Yi-hong, HUANG Xi-heng, et al. Experimental Comparative Study on Gain and Noise Characteristics of All-Fiber Few-Mode Amplifier Under Different Pumping Methods[J]. Acta Electronica Sinica, 2024, 52(06): 2074-2082. DOI:10.12263/DZXB.20230078
设计并构建全光纤型少模掺铒放大器,实验对比研究不同泵浦模式及方向对LP
01
、LP
11a
、LP
11b
这3个信号模式的增益特性影响.实验对泵浦功率、输入信号功率以及多波长情况下的放大器特性进行分析.结果表明,4种泵浦方案中,前向LP
11
泵浦情况下放大器有最佳性能,在整个C波段上信号增益超过20 dB、模式增益差低于0.9 dB,噪声系数小于9.6 dB;信号输入功率为-10 dBm/模式时,在1 550 nm处,3个信号模式的增益均超过20.8 dB、DMG低至0.3 dB、LP
01
信号光的噪声系数低于6.2 dB以及LP
11
信号光的噪声系数低于9.6 dB.4种泵浦方案下对比不同泵浦方向可得:前向泵浦放大器的噪声系数最小,但3种信号模式的增益也较小,而采用后向泵浦时,高阶信号模式增益增加,但噪声系数也会变大.对比泵浦模式可发现,相比于LP
01
泵浦,LP
11
泵浦能大幅提高LP
11
信号光的增益,对LP
01
信号光增益影响较小,从而可降低DMG值.
An all-fiber few-mode erbium-doped amplifier was built to compare the effects of different pump modes and different pump directions on the gain characteristics of the three signal modes
LP
01
LP
11a
and LP
11b.
The experimental results show that the amplifier has the best performance under forward LP
11
pumping. The signal gain is more than 20 dB
the differential modal gain (DMG) is less than 0.9 dB and the noise figure is less than 9.6 dB in the whole C band. At a signal input power of -10 dBm/mode
the gain of all three signal modes at 1 550 nm exceeds 20.8 dB
the DMG is as low as 0.3 dB
the noise figure of LP
01
signaling light is lower than 6.2 dB
and the noise figure of LP
11
signaling light is lower than 9.6 dB. Comparing the different pumping directions under the four pumping schemes
it can be found that the noise figure of the forward-pumped amplifier is the smallest
but the gains of the three signal
modes are also smaller
while the gain of the higher-order signal modes is increased by using the backward-pumped one
but the noise figure will also become larger. Comparing the pumping modes
it can be found that compared with the LP
01
pumping
the LP
11
pumping can significantly increase the gain of the LP
11
signaling light
and has less effect on the gain of the LP
01
signaling light
which can reduce the DMG value.
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