标题: 掺铒光纤放大器的应用
Applications of Erbium-Doped Fiber Amplifier
作者: 许耀文
Yaw-Wen Hsu
祁甡
李健仲
Sien Chie
Chien-Chung Lee
光电工程学系
关键字: 动态增益可调技术;增益箝制;功率监测;dynamic gain flattening technique;gain clamping;power monitoring
公开日期: 2001
摘要: 为了确保WDM系统的传输品质,WDM系统中使用的光纤放大器除了具备有足够的带宽、高输出功率和低噪声系数的等特性外,随着多通道(>80 ch)、高速率(>40 Gb/s)、长距离光纤传输系统的发展,对光纤放大器的增益平坦控制技术提出了更高的要求,这就需要研制动态增益可调技术。
本论文第一部份针对动态增益平坦技术提出了以Fabry-Perot 雷射融入掺铒光纤放大器架构,以多波长注入来同时达到动态增益平坦化与增益箝制的效果。经过实验证明,无论输入讯号的增益位准如何改变,藉由本方法皆可得到良好的平坦化结果(≤2 dB)。而在本论文第二部份,我们利用增益箝制的特性发展出一架构。在此架构中,我们可藉由增益曲线斜率的扫描,来对光通讯网路中的讯号进行功率监测。实验所得结果,误差值最大约为0.8 dB左右。
In order to ensure the transmission quality of WDM systems, the optical amplifier used in WDM system should have properties such as wide bandwith, high output power and low noise figure. However, with the development of long-haul fiber transmission system, the gain-flattening technique should also be upgraded. So dynamic gain flattening technique is needed.
In the first part of the thesis, we use a Fabry-Perot laser diode integrated into an erbium-doped fiber amplifier structure. By multi-wavelength injection, dynamic gain flattening and gain clamping can be simultaneously achieved. The experimental results show a good performance, in which the flatness can be less than 2 dB in the range of 1530~1560 nm. As for the second part, we take advantage of the properties of gain clamping and develop a new structure. In this structure, we can monitor the power of each channel in fiber communication networks by scanning the slope of gain curve. From the experimental results, the maximum inaccuracy is about 0.8 dB.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT900614041
http://hdl.handle.net/11536/69513
显示于类别:Thesis