面阵CCD 具有灵敏度高、动态范围大的优点，适用于荧光测量、DNA 测序、拉曼光谱分析和低光度检测，因此，研制基于面阵CCD 的高灵敏度微型光纤光谱仪具有重要的实际价值。光学系统采用了优化后的交叉非对称型Czerny-Turner 结构，并获得了1 nm 的光学分辨率。结合DC-DC 和LDO 的设计方法，通过USB 供电实现了6 路电压输出的复杂电源系统设计；通过Verilog HDL 完成了CCD 驱动时序设计；采用Altera 公司的EPM7064 芯片实现了驱动信号输出。CCD 输出的视频信号经双相关采样的高速16 位AD 芯片AD9826 转换后存储在独立的静态RAM 中，使得数据的采集和读取分离。所设计与实现的微型高灵敏度光纤光谱仪的灵敏度是通常基于线阵CCD 的微型光谱仪的11 倍左右，动态范围20000:1，信噪比达到500:1，很大程度地提高了微型光纤光谱仪的性能。

The area array CCD has the advantages of high sensitivity and wide dynamic range, which is suitable for fluorescence measurement, DNA sequencing, Raman spectroscopy and low photometric detection. Therefore, it is of great practical value to develop high sensitivity micro fiber spectrometer based on area array CCD. The optical resolution of 1 nm is obtained by using an optimized cross-asymmetric Czerny-Turner optical system structure. By combining the design methods of DC-DC and LDO, the complex power system with 6 voltage outputs is realized through USB power supply. The CCD drive timing design is achieved by Verilog HDL language and the signals are output through Altera's EPM7064 chip. After the CCD output video signal is converted by high-speed 16 bit AD chip AD9826, digital signals are stored in a separate static RAM, allowing dacquisition and reading of data to be separated. The sensitivity of designed micro-high sensitivity spectrometer is 11 times of that of spectrometer based on linear array CCD. Furthermore, it has a dynamic range of 20000: 1 and a signal-to-noise ratio of 500: 1. This work greatly improves the microfiber spectrometer performance.