Laboratory Upgrade in Telecommunication Applications of DFB Lasers and Erbium-doped Fiber Amplifiers for Technicians

该项目正在通过以下方式升级光学实验室组件： 介绍与设置相关的当前仪器， 测试掺铒光纤放大器和分布式 反馈激光器 学生们正在描述一个 通过测量分布反馈激光器的输出功率， 线性度、中心波长和光谱宽度（使用功率） 测量仪、单色仪和扫描干涉仪。 他们是 掺铒光纤放大器（EDFA）的组装和测试 系统 采用水平正弦波发生器作为驱动 光源或LED和DFB激光器，适当的检测器和 宽带宽示波器，他们测量放大 以及EDFA对于信号强度范围的线性度。 他们还使用BERT驱动 DFB激光源，通过一段光纤发送信号 通过和不通过EDFA放大。 最后，他们是 使用两个DFB激光器作为源， 波长）波分复用器，其输入其 在解复用级之前将信号发送到EDFA。 所有 仪器是技术人员使用的仪器的代表 使用光纤。

This project is upgrading the laboratory component of optics by introducing current instrumentation related to setting up and testing erbium-doped fiber optical amplifiers and distributed feedback lasers. Students are characterizing the output of a distributed feedback laser by measuring it output power, linearity, central wavelength, and spectral width using power meters, monochromators, and scanning interferometers. They are assembling and testing an erbium-doped fiber amplifier (EDFA) system. Using a leveled sine-wave generator as a driving source or an LED and a DFB laser, appropriate detector and a wide bandwidth oscilloscope, they are measuring amplification and linearity of the EDFA for a range of signal strengths. They are also measuring bit error rate using a BERT driving a DFB laser source, sending a signal through a length of fiber with and without amplification by an EDFA. Finally, they are using two DFB lasers as sources to make a narrowly-spaced (in wavelength) wavelength division multiplexer which inputs its signal to an EDFA before the demultiplexing stage. All instruments are representative of those which a technician working with fiber optics uses.